2012-10-12 [mones] 3.8.1cvs98
[claws.git] / src / imap.c
index ff1e5823e927c20b0524a2b23d1d16f32d387c2d..8c9df8509ef63f959991a0a43ad1f68db1e95997 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2007 Hiroyuki Yamamoto and the Claws Mail team
+ * Copyright (C) 1999-2012 Hiroyuki Yamamoto and the Claws Mail team
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,6 +19,7 @@
 
 #ifdef HAVE_CONFIG_H
 #  include "config.h"
+#include "claws-features.h"
 #endif
 
 #include "defs.h"
@@ -45,7 +46,7 @@
 #  include <iconv.h>
 #endif
 
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
+#ifdef USE_GNUTLS
 #  include "ssl.h"
 #endif
 
@@ -70,6 +71,7 @@
 #include "imap-thread.h"
 #include "account.h"
 #include "tags.h"
+#include "main.h"
 
 typedef struct _IMAPFolder     IMAPFolder;
 typedef struct _IMAPSession    IMAPSession;
@@ -130,24 +132,18 @@ struct _IMAPNameSpace
 
 #define IMAPBUFSIZE    8192
 
-typedef enum
-{
-       IMAP_FLAG_SEEN          = 1 << 0,
-       IMAP_FLAG_ANSWERED      = 1 << 1,
-       IMAP_FLAG_FLAGGED       = 1 << 2,
-       IMAP_FLAG_DELETED       = 1 << 3,
-       IMAP_FLAG_DRAFT         = 1 << 4
-} IMAPFlags;
-
 #define IMAP_IS_SEEN(flags)    ((flags & IMAP_FLAG_SEEN) != 0)
 #define IMAP_IS_ANSWERED(flags)        ((flags & IMAP_FLAG_ANSWERED) != 0)
 #define IMAP_IS_FLAGGED(flags) ((flags & IMAP_FLAG_FLAGGED) != 0)
 #define IMAP_IS_DELETED(flags) ((flags & IMAP_FLAG_DELETED) != 0)
 #define IMAP_IS_DRAFT(flags)   ((flags & IMAP_FLAG_DRAFT) != 0)
+#define IMAP_IS_FORWARDED(flags)       ((flags & IMAP_FLAG_FORWARDED) != 0)
+#define IMAP_IS_SPAM(flags)    ((flags & IMAP_FLAG_SPAM) != 0)
+#define IMAP_IS_HAM(flags)     ((flags & IMAP_FLAG_HAM) != 0)
 
 
 #define IMAP4_PORT     143
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
+#ifdef USE_GNUTLS
 #define IMAPS_PORT     993
 #endif
 
@@ -178,6 +174,7 @@ struct _IMAPFolderItem
 
        GHashTable *tags_set_table;
        GHashTable *tags_unset_table;
+       GSList *ok_flags;
 
 };
 
@@ -194,8 +191,8 @@ static void  imap_folder_destroy    (Folder         *folder);
 
 static IMAPSession *imap_session_new   (Folder         *folder,
                                         const PrefsAccount     *account);
-static void    imap_session_authenticate(IMAPSession           *session,
-                                         const PrefsAccount    *account);
+static gint    imap_session_authenticate(IMAPSession   *session,
+                                         PrefsAccount  *account);
 static void    imap_session_destroy    (Session        *session);
 
 static gchar   *imap_fetch_msg         (Folder         *folder, 
@@ -216,7 +213,7 @@ static gint         imap_add_msg            (Folder         *folder,
 static gint    imap_add_msgs           (Folder         *folder, 
                                         FolderItem     *dest,
                                         GSList         *file_list,
-                                        GRelation      *relation);
+                                        GHashTable     *relation);
 
 static gint    imap_copy_msg           (Folder         *folder,
                                         FolderItem     *dest, 
@@ -224,7 +221,15 @@ static gint        imap_copy_msg           (Folder         *folder,
 static gint    imap_copy_msgs          (Folder         *folder, 
                                         FolderItem     *dest, 
                                         MsgInfoList    *msglist, 
-                                        GRelation      *relation);
+                                        GHashTable     *relation);
+
+static gint    search_msgs             (Folder                 *folder,
+                                        FolderItem             *container,
+                                        MsgNumberList          **msgs,
+                                        gboolean               *on_server,
+                                        MatcherList            *predicate,
+                                        SearchProgressNotify   progress_cb,
+                                        gpointer               progress_data);
 
 static gint    imap_remove_msg         (Folder         *folder, 
                                         FolderItem     *item, 
@@ -232,7 +237,9 @@ static gint         imap_remove_msg         (Folder         *folder,
 static gint    imap_remove_msgs        (Folder         *folder, 
                                         FolderItem     *dest, 
                                         MsgInfoList    *msglist, 
-                                        GRelation      *relation);
+                                        GHashTable     *relation);
+static gint    imap_expunge            (Folder         *folder, 
+                                        FolderItem     *dest);
 static gint    imap_remove_all_msg     (Folder         *folder, 
                                         FolderItem     *item);
 
@@ -280,13 +287,14 @@ static FolderItem *imap_create_special_folder
 static gint imap_do_copy_msgs          (Folder         *folder,
                                         FolderItem     *dest,
                                         MsgInfoList    *msglist,
-                                        GRelation      *relation);
+                                        GHashTable     *relation);
 
 static void imap_delete_all_cached_messages    (FolderItem     *item);
 static void imap_set_batch             (Folder         *folder,
                                         FolderItem     *item,
                                         gboolean        batch);
 static gint imap_set_message_flags     (IMAPSession    *session,
+                                        IMAPFolderItem *item,
                                         MsgNumberList  *numlist,
                                         IMAPFlags       flags,
                                         GSList         *tags,
@@ -316,10 +324,12 @@ static void       imap_commit_tags        (FolderItem     *item,
 
 static gchar imap_get_path_separator           (IMAPSession    *session,
                                                 IMAPFolder     *folder,
-                                                const gchar    *path);
+                                                const gchar    *path,
+                                                gint           *ok);
 static gchar *imap_get_real_path               (IMAPSession    *session,
                                                 IMAPFolder     *folder,
-                                                const gchar    *path);
+                                                const gchar    *path,
+                                                gint           *ok);
 #ifdef HAVE_LIBETPAN
 static void imap_synchronise           (FolderItem     *item, gint days);
 #endif
@@ -333,7 +343,7 @@ static gint imap_cmd_login  (IMAPSession    *session,
                                 const gchar    *pass,
                                 const gchar    *type);
 static gint imap_cmd_noop      (IMAPSession    *session);
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
+#ifdef USE_GNUTLS
 static gint imap_cmd_starttls  (IMAPSession    *session);
 #endif
 static gint imap_cmd_select    (IMAPSession    *session,
@@ -343,6 +353,7 @@ static gint imap_cmd_select (IMAPSession    *session,
                                 gint           *unseen,
                                 guint32        *uid_validity,
                                 gint           *can_create_flags,
+                                GSList         **ok_flags,
                                 gboolean        block);
 static gint imap_cmd_close     (IMAPSession    *session);
 static gint imap_cmd_examine   (IMAPSession    *session,
@@ -365,6 +376,7 @@ static gint imap_cmd_fetch  (IMAPSession    *sock,
                                 gboolean        headers,
                                 gboolean        body);
 static gint imap_cmd_append    (IMAPSession    *session,
+                                IMAPFolderItem *item,
                                 const gchar    *destfolder,
                                 const gchar    *file,
                                 IMAPFlags       flags,
@@ -372,15 +384,15 @@ static gint imap_cmd_append       (IMAPSession    *session,
 static gint imap_cmd_copy       (IMAPSession *session,
                                 struct mailimap_set * set,
                                 const gchar *destfolder,
-                                GRelation *uid_mapping,
                                 struct mailimap_set ** source,
                                 struct mailimap_set ** dest);
 static gint imap_cmd_store     (IMAPSession    *session,
+                                IMAPFolderItem *item,
                                 struct mailimap_set * set,
                                 IMAPFlags flags,
                                 GSList *tags,
                                 int do_add);
-static gint imap_cmd_expunge   (IMAPSession    *session);
+static gint imap_cmd_expunge   (IMAPSession    *session, gboolean force);
 
 static void imap_path_separator_subst          (gchar          *str,
                                                 gchar           separator);
@@ -406,7 +418,7 @@ static void imap_change_flags                       (Folder         *folder,
 static gint imap_get_flags                     (Folder         *folder,
                                                 FolderItem     *item,
                                                 MsgInfoList    *msglist,
-                                                GRelation      *msgflags);
+                                                GHashTable     *msgflags);
 static gchar *imap_folder_get_path             (Folder         *folder);
 static gchar *imap_item_get_path               (Folder         *folder,
                                                 FolderItem     *item);
@@ -418,7 +430,7 @@ static GSList * imap_list_from_lep(IMAPFolder * folder,
                                   clist * list, const gchar * real_path, gboolean all);
 static GSList * imap_get_lep_set_from_numlist(IMAPFolder *folder, MsgNumberList *numlist);
 static GSList * imap_get_lep_set_from_msglist(IMAPFolder *folder, MsgInfoList *msglist);
-static GSList * imap_uid_list_from_lep(clist * list);
+static GSList * imap_uid_list_from_lep(clist * list, gint* length);
 static GSList * imap_uid_list_from_lep_tab(carray * list);
 static void imap_flags_hash_from_lep_uid_flags_tab(carray * list,
                                                   GHashTable * hash,
@@ -426,7 +438,7 @@ static void imap_flags_hash_from_lep_uid_flags_tab(carray * list,
 static MsgInfo *imap_envelope_from_lep(struct imap_fetch_env_info * info,
                                       FolderItem *item);
 static void imap_lep_set_free(GSList *seq_list);
-static struct mailimap_flag_list * imap_flag_to_lep(IMAPFlags flags, GSList *tags);
+static struct mailimap_flag_list * imap_flag_to_lep(IMAPFolderItem *item, IMAPFlags flags, GSList *tags);
 
 typedef struct _hashtable_data {
        GSList *msglist;
@@ -435,22 +447,13 @@ typedef struct _hashtable_data {
 
 static FolderClass imap_class;
 
-typedef struct _thread_data {
-       gchar *server;
-       gushort port;
-       gboolean done;
-       SockInfo *sock;
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
-       SSLType ssl_type;
-#endif
-} thread_data;
-
 FolderClass *imap_get_class(void)
 {
        if (imap_class.idstr == NULL) {
                imap_class.type = F_IMAP;
                imap_class.idstr = "imap";
                imap_class.uistr = "IMAP4";
+               imap_class.supports_server_search = TRUE;
 
                /* Folder functions */
                imap_class.new_folder = imap_folder_new;
@@ -482,8 +485,10 @@ FolderClass *imap_get_class(void)
                imap_class.add_msgs = imap_add_msgs;
                imap_class.copy_msg = imap_copy_msg;
                imap_class.copy_msgs = imap_copy_msgs;
+               imap_class.search_msgs = search_msgs;
                imap_class.remove_msg = imap_remove_msg;
                imap_class.remove_msgs = imap_remove_msgs;
+               imap_class.expunge = imap_expunge;
                imap_class.remove_all_msg = imap_remove_all_msg;
                imap_class.is_msg_changed = imap_is_msg_changed;
                imap_class.change_flags = imap_change_flags;
@@ -537,20 +542,20 @@ static void unlock_session(IMAPSession *session)
        }
 }
 
-static void imap_disc_session_destroy(Folder *folder)
+static void imap_disc_session_destroy(IMAPSession *session)
 {
-       RemoteFolder *rfolder = REMOTE_FOLDER(folder);
-       IMAPSession *session = NULL;
-       
-       if (!rfolder)
+       RemoteFolder *rfolder = NULL;
+
+       if (session == NULL)
                return;
-       session = IMAP_SESSION(rfolder->session);
-       if (!session)
+
+       rfolder = REMOTE_FOLDER(IMAP_SESSION(session)->folder);
+       
+       if (rfolder == NULL)
                return;
-       rfolder->session = NULL;
        log_warning(LOG_PROTOCOL, _("IMAP4 connection broken\n"));
        SESSION(session)->state = SESSION_DISCONNECTED;
-       session_destroy(SESSION(session));
+       SESSION(session)->sock = NULL;
 }
 
 static gboolean is_fatal(int libetpan_errcode)
@@ -566,148 +571,153 @@ static gboolean is_fatal(int libetpan_errcode)
        }
 }
 
-static void imap_handle_error(Session *session, int libetpan_errcode)
+static void imap_handle_error(Session *session, const gchar *server, int libetpan_errcode)
 {
+       const gchar *session_server = (session ? session->server : NULL);
+
+       if (session_server == NULL)
+               session_server = server;
+       if (session_server == NULL)
+               session_server = "(null)";
+
        switch(libetpan_errcode) {
        case MAILIMAP_NO_ERROR:
                return;
        case MAILIMAP_NO_ERROR_AUTHENTICATED:
-               log_warning(LOG_PROTOCOL, _("IMAP error: authenticated\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: authenticated\n"), session_server);
                break;
        case MAILIMAP_NO_ERROR_NON_AUTHENTICATED:
-               log_warning(LOG_PROTOCOL, _("IMAP error: not authenticated\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: not authenticated\n"), session_server);
                break;
        case MAILIMAP_ERROR_BAD_STATE:
-               log_warning(LOG_PROTOCOL, _("IMAP error: bad state\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: bad state\n"), session_server);
                break;
        case MAILIMAP_ERROR_STREAM:
-               log_warning(LOG_PROTOCOL, _("IMAP error: stream error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: stream error\n"), session_server);
                break;
        case MAILIMAP_ERROR_PARSE:
-               log_warning(LOG_PROTOCOL, _("IMAP error: parse error "
-                                           "(very probably non-RFC compliance from the server)\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: parse error "
+                                           "(very probably non-RFC compliance from the server)\n"), session_server);
                break;
        case MAILIMAP_ERROR_CONNECTION_REFUSED:
-               log_warning(LOG_PROTOCOL, _("IMAP error: connection refused\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: connection refused\n"), session_server);
                break;
        case MAILIMAP_ERROR_MEMORY:
-               log_warning(LOG_PROTOCOL, _("IMAP error: memory error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: memory error\n"), session_server);
                break;
        case MAILIMAP_ERROR_FATAL:
-               log_warning(LOG_PROTOCOL, _("IMAP error: fatal error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: fatal error\n"), session_server);
                break;
        case MAILIMAP_ERROR_PROTOCOL:
-               log_warning(LOG_PROTOCOL, _("IMAP error: protocol error"
-                                           "(very probably non-RFC compliance from the server)\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: protocol error"
+                                           "(very probably non-RFC compliance from the server)\n"), session_server);
                break;
        case MAILIMAP_ERROR_DONT_ACCEPT_CONNECTION:
-               log_warning(LOG_PROTOCOL, _("IMAP error: connection not accepted\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: connection not accepted\n"), session_server);
                break;
        case MAILIMAP_ERROR_APPEND:
-               log_warning(LOG_PROTOCOL, _("IMAP error: APPEND error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: APPEND error\n"), session_server);
                break;
        case MAILIMAP_ERROR_NOOP:
-               log_warning(LOG_PROTOCOL, _("IMAP error: NOOP error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: NOOP error\n"), session_server);
                break;
        case MAILIMAP_ERROR_LOGOUT:
-               log_warning(LOG_PROTOCOL, _("IMAP error: LOGOUT error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: LOGOUT error\n"), session_server);
                break;
        case MAILIMAP_ERROR_CAPABILITY:
-               log_warning(LOG_PROTOCOL, _("IMAP error: CAPABILITY error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: CAPABILITY error\n"), session_server);
                break;
        case MAILIMAP_ERROR_CHECK:
-               log_warning(LOG_PROTOCOL, _("IMAP error: CHECK error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: CHECK error\n"), session_server);
                break;
        case MAILIMAP_ERROR_CLOSE:
-               log_warning(LOG_PROTOCOL, _("IMAP error: CLOSE error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: CLOSE error\n"), session_server);
                break;
        case MAILIMAP_ERROR_EXPUNGE:
-               log_warning(LOG_PROTOCOL, _("IMAP error: EXPUNGE error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: EXPUNGE error\n"), session_server);
                break;
        case MAILIMAP_ERROR_COPY:
-               log_warning(LOG_PROTOCOL, _("IMAP error: COPY error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: COPY error\n"), session_server);
                break;
        case MAILIMAP_ERROR_UID_COPY:
-               log_warning(LOG_PROTOCOL, _("IMAP error: UID COPY error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: UID COPY error\n"), session_server);
                break;
        case MAILIMAP_ERROR_CREATE:
-               log_warning(LOG_PROTOCOL, _("IMAP error: CREATE error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: CREATE error\n"), session_server);
                break;
        case MAILIMAP_ERROR_DELETE:
-               log_warning(LOG_PROTOCOL, _("IMAP error: DELETE error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: DELETE error\n"), session_server);
                break;
        case MAILIMAP_ERROR_EXAMINE:
-               log_warning(LOG_PROTOCOL, _("IMAP error: EXAMINE error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: EXAMINE error\n"), session_server);
                break;
        case MAILIMAP_ERROR_FETCH:
-               log_warning(LOG_PROTOCOL, _("IMAP error: FETCH error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: FETCH error\n"), session_server);
                break;
        case MAILIMAP_ERROR_UID_FETCH:
-               log_warning(LOG_PROTOCOL, _("IMAP error: UID FETCH error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: UID FETCH error\n"), session_server);
                break;
        case MAILIMAP_ERROR_LIST:
-               log_warning(LOG_PROTOCOL, _("IMAP error: LIST error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: LIST error\n"), session_server);
                break;
        case MAILIMAP_ERROR_LOGIN:
-               log_warning(LOG_PROTOCOL, _("IMAP error: LOGIN error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: LOGIN error\n"), session_server);
                break;
        case MAILIMAP_ERROR_LSUB:
-               log_warning(LOG_PROTOCOL, _("IMAP error: LSUB error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: LSUB error\n"), session_server);
                break;
        case MAILIMAP_ERROR_RENAME:
-               log_warning(LOG_PROTOCOL, _("IMAP error: RENAME error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: RENAME error\n"), session_server);
                break;
        case MAILIMAP_ERROR_SEARCH:
-               log_warning(LOG_PROTOCOL, _("IMAP error: SEARCH error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: SEARCH error\n"), session_server);
                break;
        case MAILIMAP_ERROR_UID_SEARCH:
-               log_warning(LOG_PROTOCOL, _("IMAP error: UID SEARCH error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: UID SEARCH error\n"), session_server);
                break;
        case MAILIMAP_ERROR_SELECT:
-               log_warning(LOG_PROTOCOL, _("IMAP error: SELECT error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: SELECT error\n"), session_server);
                break;
        case MAILIMAP_ERROR_STATUS:
-               log_warning(LOG_PROTOCOL, _("IMAP error: STATUS error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: STATUS error\n"), session_server);
                break;
        case MAILIMAP_ERROR_STORE:
-               log_warning(LOG_PROTOCOL, _("IMAP error: STORE error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: STORE error\n"), session_server);
                break;
        case MAILIMAP_ERROR_UID_STORE:
-               log_warning(LOG_PROTOCOL, _("IMAP error: UID STORE error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: UID STORE error\n"), session_server);
                break;
        case MAILIMAP_ERROR_SUBSCRIBE:
-               log_warning(LOG_PROTOCOL, _("IMAP error: SUBSCRIBE error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: SUBSCRIBE error\n"), session_server);
                break;
        case MAILIMAP_ERROR_UNSUBSCRIBE:
-               log_warning(LOG_PROTOCOL, _("IMAP error: UNSUBSCRIBE error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: UNSUBSCRIBE error\n"), session_server);
                break;
        case MAILIMAP_ERROR_STARTTLS:
-               log_warning(LOG_PROTOCOL, _("IMAP error: STARTTLS error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: STARTTLS error\n"), session_server);
                break;
        case MAILIMAP_ERROR_INVAL:
-               log_warning(LOG_PROTOCOL, _("IMAP error: INVAL error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: INVAL error\n"), session_server);
                break;
        case MAILIMAP_ERROR_EXTENSION:
-               log_warning(LOG_PROTOCOL, _("IMAP error: EXTENSION error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: EXTENSION error\n"), session_server);
                break;
        case MAILIMAP_ERROR_SASL:
-               log_warning(LOG_PROTOCOL, _("IMAP error: SASL error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: SASL error\n"), session_server);
                break;
-#if (LIBETPAN_VERSION_MAJOR > 0 || LIBETPAN_VERSION_MINOR > 48)
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
+#ifdef USE_GNUTLS
        case MAILIMAP_ERROR_SSL:
-               log_warning(LOG_PROTOCOL, _("IMAP error: SSL error\n"));
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: SSL error\n"), session_server);
                break;
-#endif
 #endif
        default:
-               log_warning(LOG_PROTOCOL, _("IMAP error: Unknown error [%d]\n"),
-                       libetpan_errcode);
+               log_warning(LOG_PROTOCOL, _("IMAP error on %s: Unknown error [%d]\n"),
+                       session_server, libetpan_errcode);
                break;
        }
 
        if (session && is_fatal(libetpan_errcode)) {
-               imap_disc_session_destroy(IMAP_SESSION(session)->folder);
+               imap_disc_session_destroy(IMAP_SESSION(session));
        } else if (session && !is_fatal(libetpan_errcode)) {
                if (IMAP_SESSION(session)->busy)
                        unlock_session(IMAP_SESSION(session));
@@ -795,11 +805,10 @@ static int imap_get_capabilities(IMAPSession *session)
        capabilities = imap_threaded_capability(session->folder, &result);
 
        if (result != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), result);
-               return MAILIMAP_ERROR_CAPABILITY;
+               return result;
        }
 
-       if (capabilities == NULL) {
+       if (capabilities == NULL || capabilities->cap_list == NULL) {
                return MAILIMAP_NO_ERROR;
        }
 
@@ -831,14 +840,16 @@ static gboolean imap_has_capability(IMAPSession *session, const gchar *cap)
 static gint imap_auth(IMAPSession *session, const gchar *user, const gchar *pass,
                      IMAPAuthType type)
 {
-       gint ok = MAILIMAP_ERROR_BAD_STATE;
+       gint ok = MAILIMAP_ERROR_LOGIN;
        static time_t last_login_err = 0;
        gchar *ext_info = "";
        int r;
+       gchar *server = NULL;
        if ((r = imap_get_capabilities(session)) != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                return r;
        }
+       server = g_strdup(SESSION(session)->server);
        switch(type) {
        case IMAP_AUTH_ANON:
                ok = imap_cmd_login(session, user, pass, "ANONYMOUS");
@@ -869,14 +880,11 @@ static gint imap_auth(IMAPSession *session, const gchar *user, const gchar *pass
                        imap_has_capability(session, "GSSAPI"));
                if (imap_has_capability(session, "CRAM-MD5"))
                        ok = imap_cmd_login(session, user, pass, "CRAM-MD5");
-               if ((ok == MAILIMAP_ERROR_BAD_STATE ||
-                    ok == MAILIMAP_ERROR_LOGIN) && imap_has_capability(session, "DIGEST-MD5"))
+               if (ok == MAILIMAP_ERROR_LOGIN && imap_has_capability(session, "DIGEST-MD5"))
                        ok = imap_cmd_login(session, user, pass, "DIGEST-MD5");
-               if ((ok == MAILIMAP_ERROR_BAD_STATE ||
-                    ok == MAILIMAP_ERROR_LOGIN) && imap_has_capability(session, "GSSAPI"))
+               if (ok == MAILIMAP_ERROR_LOGIN && imap_has_capability(session, "GSSAPI"))
                        ok = imap_cmd_login(session, user, pass, "GSSAPI");
-               if (ok == MAILIMAP_ERROR_BAD_STATE||
-                   ok == MAILIMAP_ERROR_LOGIN) /* we always try LOGIN before giving up */
+               if (ok == MAILIMAP_ERROR_LOGIN) /* we always try LOGIN before giving up */
                        ok = imap_cmd_login(session, user, pass, "LOGIN");
        }
 
@@ -897,17 +905,18 @@ static gint imap_auth(IMAPSession *session, const gchar *user, const gchar *pass
 
                if (time(NULL) - last_login_err > 10) {
                        if (!prefs_common.no_recv_err_panel) {
-                               alertpanel_error(_("Connection to %s failed: "
+                               alertpanel_error_log(_("Connection to %s failed: "
                                        "login refused.%s"),
-                                       SESSION(session)->server, ext_info);
+                                       server, ext_info);
                        } else {
                                log_error(LOG_PROTOCOL, _("Connection to %s failed: "
                                        "login refused.%s\n"),
-                                       SESSION(session)->server, ext_info);
+                                       server, ext_info);
                        }
                }
                last_login_err = time(NULL);
        }
+       g_free(server);
        return ok;
 }
 
@@ -920,6 +929,7 @@ static IMAPSession *imap_reconnect_if_possible(Folder *folder, IMAPSession *sess
        if (rfolder->session == NULL) {
                log_warning(LOG_PROTOCOL, _("Connecting to %s failed"),
                            folder->account->recv_server);
+               SESSION(session)->sock = NULL;
                session_destroy(SESSION(session));
                session = NULL;
        } else {
@@ -931,6 +941,7 @@ static IMAPSession *imap_reconnect_if_possible(Folder *folder, IMAPSession *sess
                            " disconnected. Reconnecting...\n"),
                            folder->account->recv_server);
                SESSION(session)->state = SESSION_DISCONNECTED;
+               SESSION(session)->sock = NULL;
                session_destroy(SESSION(session));
                /* Clear folders session to make imap_session_get create
                   a new session, because of rfolder->session == NULL
@@ -962,12 +973,17 @@ static IMAPSession *imap_session_get(Folder *folder)
        }
 
        /* Make sure we have a session */
-       if (rfolder->session != NULL) {
+       if (rfolder->session != NULL && rfolder->session->state != SESSION_DISCONNECTED) {
                session = IMAP_SESSION(rfolder->session);
+       } else if (rfolder->session != NULL && rfolder->session->state == SESSION_DISCONNECTED) {
+               session_destroy(SESSION(rfolder->session));
+               rfolder->session = NULL;
+               goto new_conn;
        } else if (rfolder->connecting) {
                debug_print("already connecting\n");
                return NULL;
        } else {
+new_conn:
                imap_reset_uid_lists(folder);
                if (time(NULL) - rfolder->last_failure <= 2)
                        return NULL;
@@ -982,13 +998,16 @@ static IMAPSession *imap_session_get(Folder *folder)
 
        /* Make sure session is authenticated */
        if (!IMAP_SESSION(session)->authenticated)
-               imap_session_authenticate(IMAP_SESSION(session), folder->account);
+               r = imap_session_authenticate(IMAP_SESSION(session), folder->account);
        
-       if (!IMAP_SESSION(session)->authenticated) {
-               imap_threaded_disconnect(session->folder);
+       if (r != MAILIMAP_NO_ERROR || (!is_fatal(r) && !IMAP_SESSION(session)->authenticated)) {
                rfolder->session = NULL;
-               SESSION(session)->state = SESSION_DISCONNECTED;
-               session_destroy(SESSION(session));
+               if (!is_fatal(r)) {
+                       imap_threaded_disconnect(session->folder);
+                       SESSION(session)->state = SESSION_DISCONNECTED;
+                       SESSION(session)->sock = NULL;
+                       session_destroy(SESSION(session));
+               }
                rfolder->last_failure = time(NULL);
                rfolder->connecting = FALSE;
                return NULL;
@@ -1008,8 +1027,11 @@ static IMAPSession *imap_session_get(Folder *folder)
                        debug_print("disconnected!\n");
                        if (!is_fatal(r))
                                session = imap_reconnect_if_possible(folder, session);
-                       else
+                       else {
+                               rfolder->session = NULL;
+                               rfolder->connecting = FALSE;
                                session = imap_session_get(folder);
+                       }
                }
                if (session)
                        session->cancelled = FALSE;
@@ -1028,8 +1050,9 @@ static IMAPSession *imap_session_new(Folder * folder,
        gushort port;
        int r;
        int authenticated = FALSE;
-       
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
+       gchar *buf;
+
+#ifdef USE_GNUTLS
        /* FIXME: IMAP over SSL only... */ 
        SSLType ssl_type;
 
@@ -1055,7 +1078,13 @@ static IMAPSession *imap_session_new(Folder * folder,
 #endif
 
        imap_init(folder);
-       statuswindow_print_all(_("Connecting to IMAP4 server: %s..."), folder->account->recv_server);
+       buf = g_strdup_printf(_("Account '%s': Connecting to IMAP4 server: %s:%d..."),
+                               folder->account->account_name, folder->account->recv_server,
+                               port);
+       statuswindow_print_all("%s", buf);
+       log_message(LOG_PROTOCOL, "%s\n", buf);
+       g_free(buf);
+
 #ifndef G_OS_WIN32
        if (account->set_tunnelcmd) {
                r = imap_threaded_connect_cmd(folder,
@@ -1066,7 +1095,7 @@ static IMAPSession *imap_session_new(Folder * folder,
        else 
 #endif
        {
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
+#ifdef USE_GNUTLS
                if (ssl_type == SSL_TUNNEL) {
                        r = imap_threaded_connect_ssl(folder,
                                                      account->recv_server,
@@ -1089,14 +1118,12 @@ static IMAPSession *imap_session_new(Folder * folder,
                authenticated = FALSE;
        }
        else {
-#if (LIBETPAN_VERSION_MAJOR > 0 || LIBETPAN_VERSION_MINOR > 48)
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
+#ifdef USE_GNUTLS
                if (r == MAILIMAP_ERROR_SSL)
                        log_error(LOG_PROTOCOL, _("SSL handshake failed\n"));
                else
 #endif
-#endif
-                       imap_handle_error(NULL, r);
+                       imap_handle_error(NULL, account->recv_server, r);
 
                if(!prefs_common.no_recv_err_panel) {
                        alertpanel_error_log(_("Can't connect to IMAP4 server: %s:%d"),
@@ -1110,9 +1137,10 @@ static IMAPSession *imap_session_new(Folder * folder,
        }
        
        session = g_new0(IMAPSession, 1);
-       session_init(SESSION(session));
+       session_init(SESSION(session), account, FALSE);
        SESSION(session)->type             = SESSION_IMAP;
        SESSION(session)->server           = g_strdup(account->recv_server);
+       SESSION(session)->port             = port;
        SESSION(session)->sock             = NULL;
        
        SESSION(session)->destroy          = imap_session_destroy;
@@ -1128,14 +1156,17 @@ static IMAPSession *imap_session_new(Folder * folder,
        session->folder = folder;
        IMAP_FOLDER(session->folder)->last_seen_separator = 0;
 
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
+#ifdef USE_GNUTLS
        if (account->ssl_imap == SSL_STARTTLS) {
                gint ok;
 
                ok = imap_cmd_starttls(session);
                if (ok != MAILIMAP_NO_ERROR) {
                        log_warning(LOG_PROTOCOL, _("Can't start TLS session.\n"));
-                       session_destroy(SESSION(session));
+                       if (!is_fatal(ok)) {
+                               SESSION(session)->sock = NULL;
+                               session_destroy(SESSION(session));
+                       }
                        return NULL;
                }
 
@@ -1151,49 +1182,52 @@ static IMAPSession *imap_session_new(Folder * folder,
        return session;
 }
 
-static void imap_session_authenticate(IMAPSession *session, 
-                                     const PrefsAccount *account)
+static gint imap_session_authenticate(IMAPSession *session, 
+                                     PrefsAccount *account)
 {
        gchar *pass, *acc_pass;
        gboolean failed = FALSE;
-
-       g_return_if_fail(account->userid != NULL);
+       gint ok = MAILIMAP_NO_ERROR;
+       g_return_val_if_fail(account->userid != NULL, MAILIMAP_ERROR_BAD_STATE);
        acc_pass = account->passwd;
 try_again:
        pass = acc_pass;
-       if (!pass && account->imap_auth_type != IMAP_AUTH_ANON) {
+       if (!pass && account->imap_auth_type != IMAP_AUTH_ANON && account->imap_auth_type != IMAP_AUTH_GSSAPI) {
                gchar *tmp_pass;
-               tmp_pass = input_dialog_query_password(account->recv_server, account->userid);
+               tmp_pass = input_dialog_query_password_keep(account->recv_server, 
+                                                           account->userid,
+                                                           &(account->session_passwd));
                if (!tmp_pass)
-                       return;
-               Xstrdup_a(pass, tmp_pass, {g_free(tmp_pass); return;});
+                       return MAILIMAP_NO_ERROR;
+               Xstrdup_a(pass, tmp_pass, {g_free(tmp_pass); return MAILIMAP_NO_ERROR;});
                g_free(tmp_pass);
-       } else if (account->imap_auth_type == IMAP_AUTH_ANON) {
+       } else if (account->imap_auth_type == IMAP_AUTH_ANON || account->imap_auth_type == IMAP_AUTH_GSSAPI) {
                pass = "";
        }
-       statuswindow_print_all(_("Connecting to IMAP4 server %s...\n"),
-                               account->recv_server);
-       if (imap_auth(session, account->userid, pass, account->imap_auth_type) != MAILIMAP_NO_ERROR) {
-               statusbar_pop_all();
+       if ((ok = imap_auth(session, account->userid, pass, account->imap_auth_type)) != MAILIMAP_NO_ERROR) {
                
-               if (!failed) {
+               if (!failed && !is_fatal(ok)) {
                        acc_pass = NULL;
                        failed = TRUE;
+                       if (account->session_passwd != NULL) {
+                               g_free(account->session_passwd);
+                               account->session_passwd = NULL;
+                       }
                        goto try_again;
                } else {
                        if (prefs_common.no_recv_err_panel) {
-                               log_error(LOG_PROTOCOL, _("Couldn't login to IMAP server %s."), account->recv_server);
+                               log_error(LOG_PROTOCOL, _("Couldn't login to IMAP server %s.\n"), account->recv_server);
                                mainwindow_show_error();
                        } else
                                alertpanel_error_log(_("Couldn't login to IMAP server %s."), account->recv_server);
                }               
 
-               return;
+               return ok;
        } 
 
        statuswindow_pop_all();
        session->authenticated = TRUE;
-       return;
+       return MAILIMAP_NO_ERROR;
 }
 
 static void imap_session_destroy(Session *session)
@@ -1203,8 +1237,6 @@ static void imap_session_destroy(Session *session)
        
        imap_free_capabilities(IMAP_SESSION(session));
        g_free(IMAP_SESSION(session)->mbox);
-       sock_close(session->sock);
-       session->sock = NULL;
 }
 
 static gchar *imap_fetch_msg(Folder *folder, FolderItem *item, gint uid)
@@ -1221,7 +1253,7 @@ static guint get_file_size_with_crs(const gchar *filename)
        if (filename == NULL)
                return -1;
        
-       fp = fopen(filename, "rb");
+       fp = g_fopen(filename, "rb");
        if (!fp)
                return -1;
        
@@ -1250,7 +1282,7 @@ static void imap_remove_cached_msg(Folder *folder, FolderItem *item, MsgInfo *ms
        g_free(path);
 
        if (is_file_exist(filename)) {
-               g_unlink(filename);
+               claws_unlink(filename);
        }
        g_free(filename);
 }
@@ -1285,7 +1317,6 @@ static void imap_commit_tags(FolderItem *item, MsgInfo *msginfo, GSList *tags_se
                         NULL, NULL, NULL, NULL, &can_create_tags, FALSE);
 
        if (ok != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), ok);
                return;
        }
 
@@ -1342,12 +1373,13 @@ static void imap_commit_tags(FolderItem *item, MsgInfo *msginfo, GSList *tags_se
                for (cur = tags_set; cur; cur = cur->next) {
                        gint cur_tag = GPOINTER_TO_INT(cur->data);
                        const gchar *str = tags_get_tag(cur_tag);
-                       list_set = g_slist_prepend(list_set, g_strdup(str));
+                       if (IS_NOT_RESERVED_TAG(str))
+                               list_set = g_slist_prepend(list_set, g_strdup(str));
                }
                if (list_set) {
-                       ok = imap_set_message_flags(session, &numlist, 0, list_set, TRUE);
-                       slist_free_strings(list_set);
-                       g_slist_free(list_set);
+                       ok = imap_set_message_flags(session, 
+                               IMAP_FOLDER_ITEM(item), &numlist, 0, list_set, TRUE);
+                       slist_free_strings_full(list_set);
                        if (ok != MAILIMAP_NO_ERROR) {
                                return;
                        }
@@ -1356,12 +1388,13 @@ static void imap_commit_tags(FolderItem *item, MsgInfo *msginfo, GSList *tags_se
                for (cur = tags_unset; cur; cur = cur->next) {
                        gint cur_tag = GPOINTER_TO_INT(cur->data);
                        const gchar *str = tags_get_tag(cur_tag);
-                       list_unset = g_slist_prepend(list_unset, g_strdup(str));
+                       if (IS_NOT_RESERVED_TAG(str))
+                               list_unset = g_slist_prepend(list_unset, g_strdup(str));
                }
                if (list_unset) {
-                       ok = imap_set_message_flags(session, &numlist, 0, list_unset, FALSE);
-                       slist_free_strings(list_unset);
-                       g_slist_free(list_unset);
+                       ok = imap_set_message_flags(session, 
+                               IMAP_FOLDER_ITEM(item), &numlist, 0, list_unset, FALSE);
+                       slist_free_strings_full(list_unset);
                        if (ok != MAILIMAP_NO_ERROR) {
                                return;
                        }
@@ -1557,7 +1590,7 @@ static gint imap_add_msg(Folder *folder, FolderItem *dest,
 }
 
 static gint imap_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
-                  GRelation *relation)
+                  GHashTable *relation)
 {
        gchar *destdir;
        IMAPSession *session;
@@ -1577,8 +1610,9 @@ static gint imap_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
        if (!session) {
                return -1;
        }
-       destdir = imap_get_real_path(session, IMAP_FOLDER(folder), dest->path);
-
+       destdir = imap_get_real_path(session, IMAP_FOLDER(folder), dest->path, &ok);
+       if (is_fatal(ok))
+               return -1;
        statusbar_print_all(_("Adding messages..."));
        total = g_slist_length(file_list);
        for (cur = file_list; cur != NULL; cur = cur->next) {
@@ -1595,8 +1629,15 @@ static gint imap_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
                                iflags |= IMAP_FLAG_FLAGGED;
                        if (MSG_IS_REPLIED(*fileinfo->flags))
                                iflags |= IMAP_FLAG_ANSWERED;
+                       if (MSG_IS_FORWARDED(*fileinfo->flags))
+                               iflags |= IMAP_FLAG_FORWARDED;
+                       if (MSG_IS_SPAM(*fileinfo->flags))
+                               iflags |= IMAP_FLAG_SPAM;
+                       else
+                               iflags |= IMAP_FLAG_HAM;
                        if (!MSG_IS_UNREAD(*fileinfo->flags))
                                iflags |= IMAP_FLAG_SEEN;
+                       
                }
                
                if (real_file == NULL)
@@ -1608,7 +1649,7 @@ static gint imap_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
                    folder_has_parent_of_type(dest, F_TRASH))
                        iflags |= IMAP_FLAG_SEEN;
 
-               ok = imap_cmd_append(session, destdir, real_file, iflags, 
+               ok = imap_cmd_append(session, IMAP_FOLDER_ITEM(dest), destdir, real_file, iflags, 
                                     &new_uid);
 
                if (ok != MAILIMAP_NO_ERROR) {
@@ -1644,7 +1685,7 @@ static gint imap_add_msgs(Folder *folder, FolderItem *dest, GSList *file_list,
                }
 
                if (relation != NULL)
-                       g_relation_insert(relation, fileinfo->msginfo != NULL ? 
+                       g_hash_table_insert(relation, fileinfo->msginfo != NULL ? 
                                          (gpointer) fileinfo->msginfo : (gpointer) fileinfo,
                                          GINT_TO_POINTER(new_uid));
                if (last_uid < new_uid) {
@@ -1678,15 +1719,20 @@ static GSList *flatten_mailimap_set(struct mailimap_set * set)
 {
        GSList *result = NULL;
        clistiter *list;
-       int start, end, t;
+       guint32 start, end, t;
        GSList *cur;
 
+       if (!set || !set->set_list)
+               return NULL;
+
        for (list = clist_begin(set->set_list); list; list = clist_next(list)) {
                struct mailimap_set_item *item = (struct mailimap_set_item *)clist_content(list);
                start = item->set_first;
                end = item->set_last;
-               for (t = start; t <= end; t++) {
-                       result = g_slist_prepend(result, GINT_TO_POINTER(t));
+               if (start <= end) {
+                       for (t = start; t <= end; t++) {
+                               result = g_slist_prepend(result, GINT_TO_POINTER(t));
+                       }
                }
        }
        result = g_slist_reverse(result);
@@ -1701,7 +1747,7 @@ static GSList *flatten_mailimap_set(struct mailimap_set * set)
        return result;
 }
 static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest, 
-                             MsgInfoList *msglist, GRelation *relation)
+                             MsgInfoList *msglist, GHashTable *relation)
 {
        FolderItem *src;
        gchar *destdir;
@@ -1709,9 +1755,8 @@ static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest,
        MsgInfo *msginfo;
        IMAPSession *session;
        gint ok = MAILIMAP_NO_ERROR;
-       GRelation *uid_mapping;
+       GHashTable *uid_hash;
        gint last_num = 0;
-       gboolean single = FALSE;
 
        g_return_val_if_fail(folder != NULL, -1);
        g_return_val_if_fail(dest != NULL, -1);
@@ -1725,8 +1770,6 @@ static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest,
        }
 
        msginfo = (MsgInfo *)msglist->data;
-       if (msglist->next == NULL)
-               single = TRUE;
        src = msginfo->folder;
        if (src == dest) {
                g_warning("the src folder is identical to the dest.\n");
@@ -1764,10 +1807,13 @@ static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest,
 
        unlock_session(session);
 
-       destdir = imap_get_real_path(session, IMAP_FOLDER(folder), dest->path);
+       destdir = imap_get_real_path(session, IMAP_FOLDER(folder), dest->path, &ok);
+
+       if (is_fatal(ok))
+               return ok;
+
        seq_list = imap_get_lep_set_from_msglist(IMAP_FOLDER(folder), msglist);
-       uid_mapping = g_relation_new(2);
-       g_relation_index(uid_mapping, 0, g_direct_hash, g_direct_equal);
+       uid_hash = g_hash_table_new(g_direct_hash, g_direct_equal);
        
        statusbar_print_all(_("Copying messages..."));
        for (cur = seq_list; cur != NULL; cur = g_slist_next(cur)) {
@@ -1780,7 +1826,7 @@ static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest,
                            src->path, destdir);
 
                lock_session(session); /* unlocked later in the function */
-               ok = imap_cmd_copy(session, seq_set, destdir, uid_mapping,
+               ok = imap_cmd_copy(session, seq_set, destdir,
                        &source, &dest);
                
                if (is_fatal(ok)) {
@@ -1798,7 +1844,7 @@ static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest,
                                        for (s_cur = s_list, d_cur = d_list; 
                                             s_cur && d_cur; 
                                             s_cur = s_cur->next, d_cur = d_cur->next) {
-                                               g_relation_insert(uid_mapping, s_cur->data, d_cur->data);
+                                               g_hash_table_insert(uid_hash, s_cur->data, d_cur->data);
                                        }
 
                                } else {
@@ -1816,7 +1862,7 @@ static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest,
                        mailimap_set_free(dest);
 
                if (ok != MAILIMAP_NO_ERROR) {
-                       g_relation_destroy(uid_mapping);
+                       g_hash_table_destroy(uid_hash);
                        imap_lep_set_free(seq_list);
                        statusbar_pop_all();
                        return -1;
@@ -1825,14 +1871,13 @@ static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest,
 
        for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
                MsgInfo *msginfo = (MsgInfo *)cur->data;
-               GTuples *tuples;
-
-               tuples = g_relation_select(uid_mapping, 
-                                          GINT_TO_POINTER(msginfo->msgnum),
-                                          0);
-               if (tuples->len > 0) {
-                       gint num = GPOINTER_TO_INT(g_tuples_index(tuples, 0, 1));
-                       g_relation_insert(relation, msginfo,
+               gpointer hashval;
+
+               hashval = g_hash_table_lookup(uid_hash, GINT_TO_POINTER(msginfo->msgnum));
+               
+               if (hashval != NULL) {
+                       gint num = GPOINTER_TO_INT(hashval);
+                       g_hash_table_insert(relation, msginfo,
                                          GINT_TO_POINTER(num));
                        if (num > last_num)
                                last_num = num;
@@ -1861,13 +1906,12 @@ static gint imap_do_copy_msgs(Folder *folder, FolderItem *dest,
                                g_free(cache_path);
                        }
                } else
-                       g_relation_insert(relation, msginfo,
+                       g_hash_table_insert(relation, msginfo,
                                          GINT_TO_POINTER(0));
-               g_tuples_destroy(tuples);
        }
        statusbar_pop_all();
 
-       g_relation_destroy(uid_mapping);
+       g_hash_table_destroy(uid_hash);
        imap_lep_set_free(seq_list);
 
        g_free(destdir);
@@ -1897,7 +1941,7 @@ static gint imap_copy_msg(Folder *folder, FolderItem *dest, MsgInfo *msginfo)
 }
 
 static gint imap_copy_msgs(Folder *folder, FolderItem *dest, 
-                   MsgInfoList *msglist, GRelation *relation)
+                   MsgInfoList *msglist, GHashTable *relation)
 {
        MsgInfo *msginfo;
        gint ret;
@@ -1914,15 +1958,308 @@ static gint imap_copy_msgs(Folder *folder, FolderItem *dest,
 }
 
 
+static IMAPSearchKey* search_make_key(MatcherProp* match, gboolean* is_all)
+{
+       if (match->matchtype == MATCHTYPE_MATCHCASE || match->matchtype == MATCHTYPE_MATCH) {
+               IMAPSearchKey* result = NULL;
+               gboolean invert = FALSE;
+               gint matchertype = match->criteria;
+
+               if (is_all) {
+                       *is_all = FALSE;
+               }
+
+               switch (matchertype) {
+               case MATCHCRITERIA_NOT_NEW: invert = TRUE; matchertype = MATCHCRITERIA_NEW; break;
+               case MATCHCRITERIA_NOT_MARKED: invert = TRUE; matchertype = MATCHCRITERIA_MARKED; break;
+               case MATCHCRITERIA_NOT_FORWARDED: invert = TRUE; matchertype = MATCHCRITERIA_FORWARDED; break;
+               case MATCHCRITERIA_NOT_SPAM: invert = TRUE; matchertype = MATCHCRITERIA_SPAM; break;
+               case MATCHCRITERIA_NOT_SUBJECT: invert = TRUE; matchertype = MATCHCRITERIA_SUBJECT; break;
+               case MATCHCRITERIA_NOT_FROM: invert = TRUE; matchertype = MATCHCRITERIA_FROM; break;
+               case MATCHCRITERIA_NOT_TO: invert = TRUE; matchertype = MATCHCRITERIA_TO; break;
+               case MATCHCRITERIA_NOT_CC: invert = TRUE; matchertype = MATCHCRITERIA_CC; break;
+               case MATCHCRITERIA_NOT_REFERENCES: invert = TRUE; matchertype = MATCHCRITERIA_REFERENCES; break;
+               case MATCHCRITERIA_NOT_HEADER: invert = TRUE; matchertype = MATCHCRITERIA_HEADER; break;
+               case MATCHCRITERIA_NOT_TAG: invert = TRUE; matchertype = MATCHCRITERIA_TAG; break;
+               case MATCHCRITERIA_NOT_HEADERS_PART: invert = TRUE; matchertype = MATCHCRITERIA_HEADERS_PART; break;
+               case MATCHCRITERIA_NOT_MESSAGE: invert = TRUE; matchertype = MATCHCRITERIA_MESSAGE; break;
+               case MATCHCRITERIA_NOT_BODY_PART: invert = TRUE; matchertype = MATCHCRITERIA_BODY_PART; break;
+               case MATCHCRITERIA_NOT_TO_AND_NOT_CC: invert = TRUE; matchertype = MATCHCRITERIA_TO_OR_CC; break;
+               case MATCHCRITERIA_NOT_INREPLYTO: invert = TRUE; matchertype = MATCHCRITERIA_INREPLYTO; break;
+               }
+
+               /* 
+                * this aborts conversion even for predicates understood by the following code.
+                * while that might seem wasteful, claws local search for information listed below
+                * has proven faster than IMAP search plus network roundtrips. once this changes,
+                * consider removing these exceptions.
+                */
+               switch (matchertype) {
+               case MATCHCRITERIA_FROM:
+               case MATCHCRITERIA_TO:
+               case MATCHCRITERIA_CC:
+               case MATCHCRITERIA_TO_OR_CC:
+               case MATCHCRITERIA_SUBJECT:
+               case MATCHCRITERIA_REFERENCES:
+               case MATCHCRITERIA_INREPLYTO:
+               case MATCHCRITERIA_AGE_GREATER:
+               case MATCHCRITERIA_AGE_LOWER:
+               case MATCHCRITERIA_FORWARDED:
+               case MATCHCRITERIA_SPAM:
+               case MATCHCRITERIA_UNREAD:
+               case MATCHCRITERIA_NEW:
+               case MATCHCRITERIA_MARKED:
+               case MATCHCRITERIA_REPLIED:
+               case MATCHCRITERIA_DELETED:
+               case MATCHCRITERIA_SIZE_GREATER:
+               case MATCHCRITERIA_SIZE_SMALLER:
+               case MATCHCRITERIA_SIZE_EQUAL:
+                       return NULL;
+               }
+
+               /* the Message-ID header is also cached */
+               if (matchertype == MATCHCRITERIA_HEADER && g_strcmp0("Message-ID", match->header) == 0) {
+                       return NULL;
+               }
+
+               switch (matchertype) {
+               case MATCHCRITERIA_FORWARDED:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_TAG, NULL, RTAG_FORWARDED, 0);
+                       break;
+
+               case MATCHCRITERIA_SPAM:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_TAG, NULL, RTAG_JUNK, 0);
+                       break;
+
+               case MATCHCRITERIA_INREPLYTO:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_HEADER, "In-Reply-To", match->expr, 0);
+                       break;
+
+               case MATCHCRITERIA_REFERENCES:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_HEADER, "References", match->expr, 0);
+                       break;
+
+               case MATCHCRITERIA_TO_OR_CC:
+                       result = imap_search_or(
+                                       imap_search_new(IMAP_SEARCH_CRITERIA_TO, NULL, match->expr, 0),
+                                       imap_search_new(IMAP_SEARCH_CRITERIA_CC, NULL, match->expr, 0)
+                                       );
+                       break;
+
+               case MATCHCRITERIA_HEADERS_PART:
+                       result = imap_search_and(
+                                       imap_search_not(imap_search_new(IMAP_SEARCH_CRITERIA_BODY, NULL, match->expr, 0)),
+                                       imap_search_new(IMAP_SEARCH_CRITERIA_MESSAGE, NULL, match->expr, 0)
+                                       );
+                       break;
+
+               case MATCHCRITERIA_SIZE_EQUAL:
+                       result = imap_search_and(
+                                       imap_search_not(imap_search_new(IMAP_SEARCH_CRITERIA_SIZE_SMALLER, NULL, NULL, match->value)),
+                                       imap_search_not(imap_search_new(IMAP_SEARCH_CRITERIA_SIZE_GREATER, NULL, NULL, match->value))
+                                       );
+                       break;
+
+               case MATCHCRITERIA_NOT_UNREAD:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_READ, NULL, NULL, 0);
+                       break;
+
+               case MATCHCRITERIA_UNREAD:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_UNREAD, NULL, NULL, 0);
+                       break;
+
+               case MATCHCRITERIA_NEW:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_NEW, NULL, NULL, 0);
+                       break;
+
+               case MATCHCRITERIA_MARKED:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_MARKED, NULL, NULL, 0);
+                       break;
+
+               case MATCHCRITERIA_DELETED:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_DELETED, NULL, NULL, 0);
+                       break;
+
+               case MATCHCRITERIA_REPLIED:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_REPLIED, NULL, NULL, 0);
+                       break;
+
+               case MATCHCRITERIA_TAG:
+                       {
+                               gchar *tmp = imap_utf8_to_modified_utf7(match->expr, TRUE);
+                               result = imap_search_new(IMAP_SEARCH_CRITERIA_TAG, NULL, tmp, 0);
+                               g_free(tmp);
+                       }
+                       break;
+
+               case MATCHCRITERIA_SUBJECT:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_SUBJECT, NULL, match->expr, 0);
+                       break;
+
+               case MATCHCRITERIA_FROM:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_FROM, NULL, match->expr, 0);
+                       break;
+
+               case MATCHCRITERIA_TO:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_TO, NULL, match->expr, 0);
+                       break;
+
+               case MATCHCRITERIA_CC:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_CC, NULL, match->expr, 0);
+                       break;
+
+               case MATCHCRITERIA_AGE_GREATER:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_AGE_GREATER, NULL, NULL, match->value);
+                       break;
+
+               case MATCHCRITERIA_AGE_LOWER:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_AGE_LOWER, NULL, NULL, match->value);
+                       break;
+
+               case MATCHCRITERIA_BODY_PART:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_BODY, NULL, match->expr, 0);
+                       break;
+
+               case MATCHCRITERIA_MESSAGE:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_MESSAGE, NULL, match->expr, 0);
+                       break;
+
+               case MATCHCRITERIA_HEADER:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_HEADER, match->header, match->expr, 0);
+                       break;
+
+               case MATCHCRITERIA_SIZE_GREATER:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_SIZE_GREATER, NULL, NULL, match->value);
+                       break;
+
+               case MATCHCRITERIA_SIZE_SMALLER:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_SIZE_SMALLER, NULL, NULL, match->value);
+                       break;
+
+               default:
+                       result = imap_search_new(IMAP_SEARCH_CRITERIA_ALL, NULL, NULL, 0);
+                       if (is_all) {
+                               *is_all = TRUE;
+                       }
+                       break;
+               }
+
+               if (invert) {
+                       result = imap_search_not(result);
+                       if (is_all && *is_all) {
+                               *is_all = FALSE;
+                       }
+               }
+
+               return result;
+       }
+
+       return NULL;
+}
+
+static gint    search_msgs             (Folder                 *folder,
+                                        FolderItem             *container,
+                                        MsgNumberList          **msgs,
+                                        gboolean               *on_server,
+                                        MatcherList            *predicate,
+                                        SearchProgressNotify   progress_cb,
+                                        gpointer               progress_data)
+{
+       IMAPSearchKey* key = NULL;
+       GSList* cur;
+       int result = -1;
+       clist* uidlist = NULL;
+       gboolean server_filtering_useless = FALSE;
+        IMAPSession *session;
+
+       if (on_server == NULL || !*on_server) {
+               return folder_item_search_msgs_local(folder, container, msgs, on_server,
+                               predicate, progress_cb, progress_data);
+       }
+
+       for (cur = predicate->matchers; cur != NULL; cur = cur->next) {
+               IMAPSearchKey* matcherPart = NULL;
+               MatcherProp* prop = (MatcherProp*) cur->data;
+               gboolean is_all;
+
+               matcherPart = search_make_key(prop, &is_all);
+
+               if (on_server) {
+                       *on_server &= matcherPart != NULL && prop->matchtype == MATCHTYPE_MATCHCASE;
+               }
+
+               if (matcherPart) {
+                       if (key == NULL) {
+                               key = matcherPart;
+                               server_filtering_useless = is_all;
+                       } else if (predicate->bool_and) {
+                               key = imap_search_and(key, matcherPart);
+                               server_filtering_useless &= is_all;
+                       } else {
+                               key = imap_search_or(key, matcherPart);
+                               server_filtering_useless |= is_all;
+                       }
+               }
+       }
+
+       if (server_filtering_useless) {
+               imap_search_free(key);
+               key = NULL;
+       }
+
+       if (key == NULL && progress_cb != NULL) {
+               GSList* cur;
+               GSList* list;
+               int count = 0;
+
+               progress_cb(progress_data, TRUE, 0, 0, container->total_msgs);
+               progress_cb(progress_data, TRUE, container->total_msgs, 0, container->total_msgs);
+
+               list = folder_item_get_msg_list(container);
+               for (cur = list; cur != NULL; cur = cur->next) {
+                       *msgs = g_slist_prepend(*msgs, GUINT_TO_POINTER(((MsgInfo*) cur->data)->msgnum));
+                       count++;
+               }
+               *msgs = g_slist_reverse(*msgs);
+               return count;
+       }
+
+       session = imap_session_get(folder);
+        if (!session) {
+                return -1;
+        }
+       result = imap_select(session, IMAP_FOLDER(folder), FOLDER_ITEM(container),
+                        NULL, NULL, NULL, NULL, NULL, TRUE);
+       if (result != MAILIMAP_NO_ERROR)
+               return -1;
+
+       if (progress_cb)
+               progress_cb(progress_data, TRUE, 0, 0, container->total_msgs);
+       result = imap_threaded_search(folder, IMAP_SEARCH_TYPE_KEYED, key, NULL, &uidlist);
+       if (progress_cb)
+               progress_cb(progress_data, TRUE, container->total_msgs, 0, container->total_msgs);
+
+       if (result == MAILIMAP_NO_ERROR) {
+               gint result = 0;
+
+               *msgs = imap_uid_list_from_lep(uidlist, &result);
+               mailimap_search_result_free(uidlist);
+
+               return result;
+       } else {
+               return -1;
+       }
+}
+
+
 static gint imap_do_remove_msgs(Folder *folder, FolderItem *dest, 
-                               MsgInfoList *msglist, GRelation *relation)
+                               MsgInfoList *msglist, GHashTable *relation)
 {
        gchar *destdir, *dir;
        GSList *numlist = NULL, *cur;
        MsgInfo *msginfo;
        IMAPSession *session;
        gint ok = MAILIMAP_NO_ERROR;
-       GRelation *uid_mapping;
        
        g_return_val_if_fail(folder != NULL, -1);
        g_return_val_if_fail(dest != NULL, -1);
@@ -1944,7 +2281,11 @@ static gint imap_do_remove_msgs(Folder *folder, FolderItem *dest,
                return ok;
        }
 
-       destdir = imap_get_real_path(session, IMAP_FOLDER(folder), dest->path);
+       destdir = imap_get_real_path(session, IMAP_FOLDER(folder), dest->path, &ok);
+       if (is_fatal(ok)) {
+               g_free(destdir);
+               return ok;
+       }
        for (cur = msglist; cur; cur = cur->next) {
                msginfo = (MsgInfo *)cur->data;
                if (!MSG_IS_DELETED(msginfo->flags))
@@ -1952,20 +2293,19 @@ static gint imap_do_remove_msgs(Folder *folder, FolderItem *dest,
        }
        numlist = g_slist_reverse(numlist);
 
-       uid_mapping = g_relation_new(2);
-       g_relation_index(uid_mapping, 0, g_direct_hash, g_direct_equal);
-
        if (numlist != NULL) {
                ok = imap_set_message_flags
-                       (session, numlist, IMAP_FLAG_DELETED, NULL, TRUE);
+                       (session, IMAP_FOLDER_ITEM(msginfo->folder), numlist, IMAP_FLAG_DELETED, NULL, TRUE);
                if (ok != MAILIMAP_NO_ERROR) {
                        log_warning(LOG_PROTOCOL, _("can't set deleted flags\n"));
+                       g_free(destdir);
                        return ok;
                }
        } /* else we just need to expunge */
-       ok = imap_cmd_expunge(session);
+       ok = imap_cmd_expunge(session, folder->account->imap_use_trash);
        if (ok != MAILIMAP_NO_ERROR) {
                log_warning(LOG_PROTOCOL, _("can't expunge\n"));
+               g_free(destdir);
                return ok;
        }
        
@@ -1981,7 +2321,6 @@ static gint imap_do_remove_msgs(Folder *folder, FolderItem *dest,
        }
        g_free(dir);
 
-       g_relation_destroy(uid_mapping);
        g_slist_free(numlist);
 
        imap_scan_required(folder, dest);
@@ -1994,7 +2333,7 @@ static gint imap_do_remove_msgs(Folder *folder, FolderItem *dest,
 }
 
 static gint imap_remove_msgs(Folder *folder, FolderItem *dest, 
-                   MsgInfoList *msglist, GRelation *relation)
+                   MsgInfoList *msglist, GHashTable *relation)
 {
        MsgInfo *msginfo;
 
@@ -2052,18 +2391,22 @@ static gint imap_scan_tree_real(Folder *folder, gboolean subs_only)
 
        if (folder->account->imap_dir && *folder->account->imap_dir) {
                gchar *real_path;
-               int r;
+               int r = MAILIMAP_NO_ERROR;
                clist * lep_list;
 
                Xstrdup_a(root_folder, folder->account->imap_dir, {return -1;});
                extract_quote(root_folder, '"');
                subst_char(root_folder,
                           imap_get_path_separator(session, IMAP_FOLDER(folder),
-                                                  root_folder),
+                                                  root_folder, &r),
                           '/');
+               if (is_fatal(r))
+                       return -1;
                strtailchomp(root_folder, '/');
                real_path = imap_get_real_path
-                       (session, IMAP_FOLDER(folder), root_folder);
+                       (session, IMAP_FOLDER(folder), root_folder, &r);
+               if (is_fatal(r))
+                       return -1;
                debug_print("IMAP root directory: %s\n", real_path);
 
                /* check if root directory exist */
@@ -2072,7 +2415,7 @@ static gint imap_scan_tree_real(Folder *folder, gboolean subs_only)
                                       &lep_list);
 
                if (r != MAILIMAP_NO_ERROR)
-                       imap_handle_error(SESSION(session), r);
+                       imap_handle_error(SESSION(session), NULL, r);
 
                if ((r != MAILIMAP_NO_ERROR) || (clist_count(lep_list) == 0)) {
                        if (!folder->node) {
@@ -2130,7 +2473,7 @@ static gint imap_scan_tree_recursive(IMAPSession *session, FolderItem *item, gbo
        gchar separator;
        gchar wildcard[3];
        clist * lep_list;
-       int r;
+       int r = MAILIMAP_NO_ERROR;
        
        g_return_val_if_fail(item != NULL, -1);
        g_return_val_if_fail(item->folder != NULL, -1);
@@ -2139,7 +2482,9 @@ static gint imap_scan_tree_recursive(IMAPSession *session, FolderItem *item, gbo
        folder = item->folder;
        imapfolder = IMAP_FOLDER(folder);
 
-       separator = imap_get_path_separator(session, imapfolder, item->path);
+       separator = imap_get_path_separator(session, imapfolder, item->path, &r);
+       if (is_fatal(r))
+               return r;
 
        if (folder->ui_func)
                folder->ui_func(folder, item, folder->ui_func_data);
@@ -2148,7 +2493,11 @@ static gint imap_scan_tree_recursive(IMAPSession *session, FolderItem *item, gbo
                wildcard[0] = separator;
                wildcard[1] = '%';
                wildcard[2] = '\0';
-               real_path = imap_get_real_path(session, imapfolder, item->path);
+               real_path = imap_get_real_path(session, imapfolder, item->path, &r);
+               if (is_fatal(r)) {
+                       g_free(real_path);
+                       return r;
+               }
        } else {
                wildcard[0] = '%';
                wildcard[1] = '\0';
@@ -2165,8 +2514,10 @@ static gint imap_scan_tree_recursive(IMAPSession *session, FolderItem *item, gbo
                r = imap_threaded_list(folder, "", wildcard_path, &lep_list);
 
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                item_list = NULL;
+               g_free(real_path);
+               return r;
        }
        else {
                item_list = imap_list_from_lep(imapfolder,
@@ -2275,18 +2626,24 @@ GList *imap_scan_subtree(Folder *folder, FolderItem *item, gboolean unsubs_only,
        GSList *item_list = NULL, *cur;
        GList *child_list = NULL, *tmplist = NULL;
        GSList *sub_list = NULL;
-       int r;
+       int r = MAILIMAP_NO_ERROR;
 
        if (!session)
                return NULL;
 
-       separator = imap_get_path_separator(session, IMAP_FOLDER(folder), item->path);
+       separator = imap_get_path_separator(session, IMAP_FOLDER(folder), item->path, &r);
+       if (is_fatal(r))
+               return NULL;
 
        if (item->path) {
                wildcard[0] = separator;
                wildcard[1] = '%';
                wildcard[2] = '\0';
-               real_path = imap_get_real_path(session, IMAP_FOLDER(folder), item->path);
+               real_path = imap_get_real_path(session, IMAP_FOLDER(folder), item->path, &r);
+               if (is_fatal(r)) {
+                       g_free(real_path);
+                       return NULL;
+               }
        } else {
                wildcard[0] = '%';
                wildcard[1] = '\0';
@@ -2306,6 +2663,7 @@ GList *imap_scan_subtree(Folder *folder, FolderItem *item, gboolean unsubs_only,
 
        r = imap_threaded_list(folder, "", wildcard_path, &lep_list);
        if (r) {
+               g_free(real_path);
                statusbar_pop_all();
                return NULL;
        }
@@ -2323,8 +2681,12 @@ GList *imap_scan_subtree(Folder *folder, FolderItem *item, gboolean unsubs_only,
                }
                child_list = g_list_prepend(child_list,
                                imap_get_real_path(session, 
-                                       IMAP_FOLDER(folder), cur_item->path));
-               
+                                       IMAP_FOLDER(folder), cur_item->path, &r));
+               if (is_fatal(r)) {
+                       g_free(real_path);
+                       statusbar_pop_all();
+                       return NULL;
+               }
                folder_item_destroy(cur_item);
        }
        child_list = g_list_reverse(child_list);
@@ -2333,6 +2695,7 @@ GList *imap_scan_subtree(Folder *folder, FolderItem *item, gboolean unsubs_only,
        if (unsubs_only) {
                r = imap_threaded_lsub(folder, "", wildcard_path, &lep_list);
                if (r) {
+                       g_free(real_path);
                        statusbar_pop_all();
                        return NULL;
                }
@@ -2344,7 +2707,12 @@ GList *imap_scan_subtree(Folder *folder, FolderItem *item, gboolean unsubs_only,
                        FolderItem *cur_item = FOLDER_ITEM(cur->data);
                        GList *oldlitem = NULL;
                        gchar *tmp = imap_get_real_path(session, 
-                                       IMAP_FOLDER(folder), cur_item->path);
+                                       IMAP_FOLDER(folder), cur_item->path, &r);
+                       if (r) {
+                               g_free(real_path);
+                               statusbar_pop_all();
+                               return NULL;
+                       }
                        folder_item_destroy(cur_item);
                        oldlitem = g_list_find_custom(
                                        child_list, tmp, (GCompareFunc)strcmp2);
@@ -2357,6 +2725,7 @@ GList *imap_scan_subtree(Folder *folder, FolderItem *item, gboolean unsubs_only,
                }
        }
 
+       g_free(real_path);
        statusbar_pop_all();
 
        return child_list;
@@ -2444,31 +2813,74 @@ static gchar *imap_folder_get_path(Folder *folder)
        return folder_path;
 }
 
+#ifdef G_OS_WIN32
+static gchar *imap_encode_unsafe_chars(const gchar *str)
+{
+       gchar *ret = NULL, *o_ret;
+       gchar *i;
+       if (!str) 
+               return NULL;
+       ret = g_malloc(3*strlen(str)+1);
+       o_ret = ret;
+       for (i = str; *i; i++) {
+               switch(*i) {
+                       case ':':
+                       case '|':
+                       case '<':
+                       case '>':
+                       case '*':
+                       case '?':
+                       case '#':
+                               *ret++ = '%';
+                               *ret++ = '0'+(*i/10);
+                               *ret++ = '0'+(*i%10);
+                               break;
+                       default:
+                               *ret++ = *i;
+               }
+       }
+       *ret++ = '\0';
+       return o_ret;
+}
+#endif
 static gchar *imap_item_get_path(Folder *folder, FolderItem *item)
 {
        gchar *folder_path, *path;
-
+       gchar *item_path = NULL;
+       
        g_return_val_if_fail(folder != NULL, NULL);
        g_return_val_if_fail(item != NULL, NULL);
        folder_path = imap_folder_get_path(folder);
 
        g_return_val_if_fail(folder_path != NULL, NULL);
-        if (folder_path[0] == G_DIR_SEPARATOR) {
-                if (item->path)
+
+#ifdef G_OS_UNIX
+       item_path = g_strdup(item->path);
+#else
+       item_path = imap_encode_unsafe_chars(item->path);
+#endif 
+
+        if (g_path_is_absolute(folder_path)) {
+                if (item_path)
                         path = g_strconcat(folder_path, G_DIR_SEPARATOR_S,
-                                           item->path, NULL);
+                                           item_path, NULL);
                 else
                         path = g_strdup(folder_path);
         } else {
-                if (item->path)
+                if (item_path)
                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
                                            folder_path, G_DIR_SEPARATOR_S,
-                                           item->path, NULL);
+                                           item_path, NULL);
                 else
                         path = g_strconcat(get_home_dir(), G_DIR_SEPARATOR_S,
                                            folder_path, NULL);
         }
         g_free(folder_path);
+        g_free(item_path);
+#ifdef G_OS_WIN32
+       while (strchr(path, '/'))
+               *strchr(path, '/') = '\\';
+#endif
 
        return path;
 }
@@ -2482,7 +2894,7 @@ static FolderItem *imap_create_folder(Folder *folder, FolderItem *parent,
        gchar separator;
        gchar *new_name;
        const gchar *p;
-       gint ok;
+       gint ok = MAILIMAP_NO_ERROR;
        gboolean no_select = FALSE, no_sub = FALSE;
        gboolean exist = FALSE;
        
@@ -2521,9 +2933,14 @@ static FolderItem *imap_create_folder(Folder *folder, FolderItem *parent,
        strtailchomp(dirpath, '/');
        Xstrdup_a(new_name, name, {
                g_free(dirpath); 
+               g_free(imap_path);
                return NULL;});
 
-       separator = imap_get_path_separator(session, IMAP_FOLDER(folder), imap_path);
+       separator = imap_get_path_separator(session, IMAP_FOLDER(folder), imap_path, &ok);
+       if (is_fatal(ok)) {
+               g_free(imap_path);
+               return NULL;
+       }
        imap_path_separator_subst(imap_path, separator);
        /* remove trailing / for display */
        strtailchomp(new_name, '/');
@@ -2536,7 +2953,7 @@ static FolderItem *imap_create_folder(Folder *folder, FolderItem *parent,
                argbuf = g_ptr_array_new();
                r = imap_threaded_list(folder, "", imap_path, &lep_list);
                if (r != MAILIMAP_NO_ERROR) {
-                       imap_handle_error(SESSION(session), r);
+                       imap_handle_error(SESSION(session), NULL, r);
                        log_warning(LOG_PROTOCOL, _("can't create mailbox: LIST failed\n"));
                        g_free(imap_path);
                        g_free(dirpath);
@@ -2569,7 +2986,7 @@ static FolderItem *imap_create_folder(Folder *folder, FolderItem *parent,
                                } 
                                mailimap_list_result_free(lep_list);
                        } else {
-                               imap_handle_error(SESSION(session), r);
+                               imap_handle_error(SESSION(session), NULL, r);
                        }
                }
                imap_threaded_subscribe(folder, imap_path, TRUE);
@@ -2589,7 +3006,7 @@ static FolderItem *imap_create_folder(Folder *folder, FolderItem *parent,
                        } 
                        mailimap_list_result_free(lep_list);
                } else {
-                       imap_handle_error(SESSION(session), r);
+                       imap_handle_error(SESSION(session), NULL, r);
                }
        }
 
@@ -2626,7 +3043,7 @@ static gint imap_rename_folder(Folder *folder, FolderItem *item,
        gchar *new_cache_dir;
        IMAPSession *session;
        gchar separator;
-       gint ok;
+       gint ok = MAILIMAP_NO_ERROR;
        gint exists, recent, unseen;
        guint32 uid_validity;
 
@@ -2641,13 +3058,17 @@ static gint imap_rename_folder(Folder *folder, FolderItem *item,
                return -1;
        }
 
-       if (strchr(name, imap_get_path_separator(session, IMAP_FOLDER(folder), item->path)) != NULL) {
+       if (strchr(name, imap_get_path_separator(session, IMAP_FOLDER(folder), item->path, &ok)) != NULL ||
+               is_fatal(ok)) {
                g_warning(_("New folder name must not contain the namespace "
                            "path separator"));
                return -1;
        }
 
-       real_oldpath = imap_get_real_path(session, IMAP_FOLDER(folder), item->path);
+       real_oldpath = imap_get_real_path(session, IMAP_FOLDER(folder), item->path, &ok);
+       if (is_fatal(ok)) {
+               return -1;
+       }
 
        g_free(session->mbox);
        session->mbox = NULL;
@@ -2661,7 +3082,9 @@ static gint imap_rename_folder(Folder *folder, FolderItem *item,
                return -1;
        }
 
-       separator = imap_get_path_separator(session, IMAP_FOLDER(folder), item->path);
+       separator = imap_get_path_separator(session, IMAP_FOLDER(folder), item->path, &ok);
+       if (is_fatal(ok))
+               return -1;
        if (strchr(item->path, G_DIR_SEPARATOR)) {
                dirpath = g_path_get_dirname(item->path);
                newpath = g_strconcat(dirpath, G_DIR_SEPARATOR_S, name, NULL);
@@ -2693,7 +3116,7 @@ static gint imap_rename_folder(Folder *folder, FolderItem *item,
 
        if (is_dir_exist(old_cache_dir)) {
                new_cache_dir = folder_item_get_path(item);
-               if (rename(old_cache_dir, new_cache_dir) < 0) {
+               if (g_rename(old_cache_dir, new_cache_dir) < 0) {
                        FILE_OP_ERROR(old_cache_dir, "rename");
                }
                g_free(new_cache_dir);
@@ -2710,7 +3133,7 @@ static gint imap_rename_folder(Folder *folder, FolderItem *item,
 gint imap_subscribe(Folder *folder, FolderItem *item, gchar *rpath, gboolean sub)
 {
        gchar *path;
-       gint r = -1;
+       gint r = MAILIMAP_NO_ERROR;
        IMAPSession *session;
        debug_print("getting session...\n");
 
@@ -2719,11 +3142,17 @@ gint imap_subscribe(Folder *folder, FolderItem *item, gchar *rpath, gboolean sub
                return -1;
        }
        if (item && item->path) {
-               path = imap_get_real_path(session, IMAP_FOLDER(folder), item->path);
+               path = imap_get_real_path(session, IMAP_FOLDER(folder), item->path, &r);
                if (!path)
                        return -1;
-               if (!strcmp(path, "INBOX") && sub == FALSE)
+               if (is_fatal(r)) {
+                       g_free(path);
+                       return -1;
+               }
+               if (!strcmp(path, "INBOX") && sub == FALSE) {
+                       g_free(path);
                        return -1;
+               }
                debug_print("%ssubscribing %s\n", sub?"":"un", path);
                r = imap_threaded_subscribe(folder, path, sub);
                g_free(path);
@@ -2736,7 +3165,7 @@ gint imap_subscribe(Folder *folder, FolderItem *item, gchar *rpath, gboolean sub
 
 static gint imap_remove_folder_real(Folder *folder, FolderItem *item)
 {
-       gint ok;
+       gint ok = MAILIMAP_NO_ERROR;
        IMAPSession *session;
        gchar *path;
        gchar *cache_dir;
@@ -2751,7 +3180,9 @@ static gint imap_remove_folder_real(Folder *folder, FolderItem *item)
        if (!session) {
                return -1;
        }
-       path = imap_get_real_path(session, IMAP_FOLDER(folder), item->path);
+       path = imap_get_real_path(session, IMAP_FOLDER(folder), item->path, &ok);
+       if (is_fatal(ok))
+               return -1;
 
        imap_threaded_subscribe(folder, path, FALSE);
 
@@ -2761,17 +3192,20 @@ static gint imap_remove_folder_real(Folder *folder, FolderItem *item)
                ok = imap_cmd_close(session);
                if (ok != MAILIMAP_NO_ERROR) {
                        debug_print("close err %d\n", ok);
-                       imap_handle_error(SESSION(session), ok);
                        return ok;
                }
        }
        ok = imap_cmd_delete(session, path);
-       if (ok != MAILIMAP_NO_ERROR) {
-               gchar *tmp = g_strdup_printf("%s%c", path, 
-                               imap_get_path_separator(session, IMAP_FOLDER(folder), path));
+       if (ok != MAILIMAP_NO_ERROR && !is_fatal(ok)) {
+               gchar *tmp = NULL;
+               
+               ok = MAILIMAP_NO_ERROR;
+               tmp = g_strdup_printf("%s%c", path, 
+                               imap_get_path_separator(session, IMAP_FOLDER(folder), path, &ok));
                g_free(path);
                path = tmp;
-               ok = imap_cmd_delete(session, path);
+               if (!is_fatal(ok))
+                       ok = imap_cmd_delete(session, path);
        }
 
        if (ok != MAILIMAP_NO_ERROR) {
@@ -2857,7 +3291,7 @@ static void *imap_get_uncached_messages_thread(void *data)
                r = imap_threaded_fetch_env(session->folder,
                                            imapset, &env_list);
                if (r != MAILIMAP_NO_ERROR) {
-                       imap_handle_error(SESSION(session), r);
+                       imap_handle_error(SESSION(session), NULL, r);
                        if (is_fatal(r)) {
                                stuff->ok = r;
                                return NULL;
@@ -2876,32 +3310,30 @@ static void *imap_get_uncached_messages_thread(void *data)
                        tags = carray_get(env_list, i+1);
                        msginfo = imap_envelope_from_lep(info, item);
                        if (msginfo == NULL) {
-                               slist_free_strings(tags);
-                               g_slist_free(tags);
+                               slist_free_strings_full(tags);
                                continue;
                        }
-                       if (tags != NULL) {
-                               g_slist_free(msginfo->tags);
-                               msginfo->tags = NULL;
-                       }
+                       g_slist_free(msginfo->tags);
+                       msginfo->tags = NULL;
+
                        for (cur = tags; cur; cur = cur->next) {
                                gchar *real_tag = imap_modified_utf7_to_utf8(cur->data, TRUE);
                                gint id = 0;
                                id = tags_get_id_for_str(real_tag);
-                               printf("tag %s %d\n", real_tag, id);
                                if (id == -1) {
                                        id = tags_add_tag(real_tag);
                                        got_alien_tags = TRUE;
                                }
                                if (!g_slist_find(msginfo->tags, GINT_TO_POINTER(id))) {
-                                       msginfo->tags = g_slist_append(
+                                       msginfo->tags = g_slist_prepend(
                                                        msginfo->tags,
                                                        GINT_TO_POINTER(id));
                                }
                                g_free(real_tag);
                        }
-                       slist_free_strings(tags);
-                       g_slist_free(tags);
+                       if (msginfo->tags)
+                               msginfo->tags = g_slist_reverse(msginfo->tags);
+                       slist_free_strings_full(tags);
                        msginfo->folder = item;
                        if (!newlist)
                                llast = newlist = g_slist_append(newlist, msginfo);
@@ -2942,9 +3374,7 @@ static GSList *imap_get_uncached_messages(IMAPSession *session,
        GSList *result = NULL;
        GSList * cur;
        uncached_data *data = g_new0(uncached_data, 1);
-       int finished;
        
-       finished = 0;
        cur = numlist;
        data->total = g_slist_length(numlist);
        data->ok = MAILIMAP_NO_ERROR;
@@ -3036,7 +3466,7 @@ gchar imap_get_path_separator_for_item(FolderItem *item)
        IMAPFolder *imap_folder = NULL;
        IMAPSession *session = NULL;
        gchar result = '/';
-       
+       gint ok = MAILIMAP_NO_ERROR;
        if (!item)
                return '/';
        folder = item->folder;
@@ -3051,11 +3481,11 @@ gchar imap_get_path_separator_for_item(FolderItem *item)
        
        debug_print("getting session...");
        session = imap_session_get(FOLDER(folder));
-       result = imap_get_path_separator(session, imap_folder, item->path);
+       result = imap_get_path_separator(session, imap_folder, item->path, &ok);
        return result;
 }
 
-static gchar imap_refresh_path_separator(IMAPSession *session, IMAPFolder *folder, const gchar *subfolder)
+static gchar imap_refresh_path_separator(IMAPSession *session, IMAPFolder *folder, const gchar *subfolder, gint *ok)
 {
        clist * lep_list;
        int r;
@@ -3065,12 +3495,13 @@ static gchar imap_refresh_path_separator(IMAPSession *session, IMAPFolder *folde
        r = imap_threaded_list((Folder *)folder, "", subfolder, &lep_list);
        
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                log_warning(LOG_PROTOCOL, _("LIST failed\n"));
+               *ok = r;
                return '\0';
        }
 
-       if (clist_count(lep_list) > 0) {
+       if (lep_list != NULL && clist_count(lep_list) > 0) {
                clistiter * iter = clist_begin(lep_list); 
                struct mailimap_mailbox_list * mb;
                mb = clist_content(iter);
@@ -3078,20 +3509,21 @@ static gchar imap_refresh_path_separator(IMAPSession *session, IMAPFolder *folde
                separator = mb->mb_delimiter;
                debug_print("got separator: %c\n", folder->last_seen_separator);
        }
+       *ok = MAILIMAP_NO_ERROR;
        mailimap_list_result_free(lep_list);
        return separator;
 }
 
-static gchar imap_get_path_separator(IMAPSession *session, IMAPFolder *folder, const gchar *path)
+static gchar imap_get_path_separator(IMAPSession *session, IMAPFolder *folder, const gchar *path, gint *ok)
 {
        gchar separator = '/';
-
+       *ok = MAILIMAP_NO_ERROR;
        if (folder->last_seen_separator == 0) {
-               folder->last_seen_separator = imap_refresh_path_separator(session, folder, "");
+               folder->last_seen_separator = imap_refresh_path_separator(session, folder, "", ok);
        }
 
        if (folder->last_seen_separator == 0) {
-               folder->last_seen_separator = imap_refresh_path_separator(session, folder, "INBOX");
+               folder->last_seen_separator = imap_refresh_path_separator(session, folder, "INBOX", ok);
        }
 
        if (folder->last_seen_separator != 0) {
@@ -3102,22 +3534,26 @@ static gchar imap_get_path_separator(IMAPSession *session, IMAPFolder *folder, c
        return separator;
 }
 
-static gchar *imap_get_real_path(IMAPSession *session, IMAPFolder *folder, const gchar *path)
+static gchar *imap_get_real_path(IMAPSession *session, IMAPFolder *folder, const gchar *path, gint *ok)
 {
-       gchar *real_path;
+       gchar *real_path = NULL;
        gchar separator;
-
+       
        g_return_val_if_fail(folder != NULL, NULL);
        g_return_val_if_fail(path != NULL, NULL);
 
+       *ok = MAILIMAP_NO_ERROR;
+       
        real_path = imap_utf8_to_modified_utf7(path, FALSE);
-       separator = imap_get_path_separator(session, folder, path);
-       imap_path_separator_subst(real_path, separator);
+       separator = imap_get_path_separator(session, folder, path, ok);
+       if (*ok == MAILIMAP_NO_ERROR)
+               imap_path_separator_subst(real_path, separator);
 
        return real_path;
 }
 
 static gint imap_set_message_flags(IMAPSession *session,
+                                  IMAPFolderItem *item,
                                   MsgNumberList *numlist,
                                   IMAPFlags flags,
                                   GSList *tags,
@@ -3149,12 +3585,19 @@ static gint imap_set_message_flags(IMAPSession *session,
 
        for(cur = seq_list ; cur != NULL ; cur = g_slist_next(cur)) {
                struct mailimap_set * imapset = (struct mailimap_set *)cur->data;
-               struct mailimap_set_item *set_item = clist_content(
-                                                       clist_begin(imapset->set_list));
+               struct mailimap_set_item *set_item = NULL;
+               
+               if (imapset->set_list)
+                       set_item = clist_content(clist_begin(imapset->set_list));
+               else
+                       continue;
+
+               if (set_item == NULL)
+                       continue;
 
                statusbar_progress_all(set_item->set_first, total, 1);
 
-               ok = imap_cmd_store(session, imapset,
+               ok = imap_cmd_store(session, item, imapset,
                                    flags, tags, is_set);
                statusbar_progress_all(set_item->set_last, total, 1);
                if (ok != MAILIMAP_NO_ERROR && folder->max_set_size > 20) {
@@ -3193,7 +3636,7 @@ static gint imap_select(IMAPSession *session, IMAPFolder *folder,
                        gboolean block)
 {
        gchar *real_path;
-       gint ok;
+       gint ok = MAILIMAP_NO_ERROR;
        gint exists_, recent_, unseen_;
        guint32 uid_validity_;
        gint can_create_flags_;
@@ -3230,10 +3673,14 @@ static gint imap_select(IMAPSession *session, IMAPFolder *folder,
        session->recent = 0;
        session->expunge = 0;
 
-       real_path = imap_get_real_path(session, folder, path);
-
+       real_path = imap_get_real_path(session, folder, path, &ok);
+       if (is_fatal(ok))
+               return ok;              
+       g_slist_free(IMAP_FOLDER_ITEM(item)->ok_flags);
+       IMAP_FOLDER_ITEM(item)->ok_flags = NULL;
        ok = imap_cmd_select(session, real_path,
-                            exists, recent, unseen, uid_validity, can_create_flags, block);
+                            exists, recent, unseen, uid_validity, can_create_flags, 
+                            &(IMAP_FOLDER_ITEM(item)->ok_flags), block);
        if (ok != MAILIMAP_NO_ERROR) {
                log_warning(LOG_PROTOCOL, _("can't select folder: %s\n"), real_path);
        } else {
@@ -3264,15 +3711,18 @@ static gint imap_status(IMAPSession *session, IMAPFolder *folder,
                        guint32 *uid_next, guint32 *uid_validity,
                        gint *unseen, gboolean block)
 {
-       int r;
+       int r = MAILIMAP_NO_ERROR;
        clistiter * iter;
        struct mailimap_mailbox_data_status * data_status;
        int got_values;
        gchar *real_path;
        guint mask = 0;
        
-       real_path = imap_get_real_path(session, folder, path);
-
+       real_path = imap_get_real_path(session, folder, path, &r);
+       if (is_fatal(r)) {
+               g_free(real_path);
+               return r;
+       }
        if (messages) {
                mask |= 1 << 0;
                *messages = 0;
@@ -3294,8 +3744,8 @@ static gint imap_status(IMAPSession *session, IMAPFolder *folder,
            !strcmp(session->mbox, item->item.path)) {
                r = imap_cmd_close(session);
                if (r != MAILIMAP_NO_ERROR) {
-                       imap_handle_error(SESSION(session), r);
                        debug_print("close err %d\n", r);
+                       g_free(real_path);
                        return r;
                }
        }
@@ -3305,51 +3755,56 @@ static gint imap_status(IMAPSession *session, IMAPFolder *folder,
 
        g_free(real_path);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                debug_print("status err %d\n", r);
                return r;
        }
        
-       if (data_status->st_info_list == NULL) {
-               mailimap_mailbox_data_status_free(data_status);
-               debug_print("status->st_info_list == NULL\n");
+       if (data_status == NULL || data_status->st_info_list == NULL) {
+               debug_print("data_status %p\n", data_status);
+               if (data_status) {
+                       debug_print("data_status->st_info_list %p\n", data_status->st_info_list);
+                       mailimap_mailbox_data_status_free(data_status);
+               }
                return MAILIMAP_ERROR_BAD_STATE;
        }
        
        got_values = 0;
-       for(iter = clist_begin(data_status->st_info_list) ; iter != NULL ;
-           iter = clist_next(iter)) {
-               struct mailimap_status_info * info;             
-               
-               info = clist_content(iter);
-               switch (info->st_att) {
-               case MAILIMAP_STATUS_ATT_MESSAGES:
-                       if (messages) {
-                               * messages = info->st_value;
-                               got_values |= 1 << 0;
-                       }
-                       break;
-                       
-               case MAILIMAP_STATUS_ATT_UIDNEXT:
-                       if (uid_next) {
-                               * uid_next = info->st_value;
-                               got_values |= 1 << 2;
-                       }
-                       break;
-                       
-               case MAILIMAP_STATUS_ATT_UIDVALIDITY:
-                       if (uid_validity) {
-                               * uid_validity = info->st_value;
-                               got_values |= 1 << 3;
-                       }
-                       break;
-                       
-               case MAILIMAP_STATUS_ATT_UNSEEN:
-                       if (unseen) {
-                               * unseen = info->st_value;
-                               got_values |= 1 << 4;
+       if (data_status->st_info_list) {
+               for(iter = clist_begin(data_status->st_info_list) ; iter != NULL ;
+                   iter = clist_next(iter)) {
+                       struct mailimap_status_info * info;             
+
+                       info = clist_content(iter);
+                       switch (info->st_att) {
+                       case MAILIMAP_STATUS_ATT_MESSAGES:
+                               if (messages) {
+                                       * messages = info->st_value;
+                                       got_values |= 1 << 0;
+                               }
+                               break;
+
+                       case MAILIMAP_STATUS_ATT_UIDNEXT:
+                               if (uid_next) {
+                                       * uid_next = info->st_value;
+                                       got_values |= 1 << 2;
+                               }
+                               break;
+
+                       case MAILIMAP_STATUS_ATT_UIDVALIDITY:
+                               if (uid_validity) {
+                                       * uid_validity = info->st_value;
+                                       got_values |= 1 << 3;
+                               }
+                               break;
+
+                       case MAILIMAP_STATUS_ATT_UNSEEN:
+                               if (unseen) {
+                                       * unseen = info->st_value;
+                                       got_values |= 1 << 4;
+                               }
+                               break;
                        }
-                       break;
                }
        }
        mailimap_mailbox_data_status_free(data_status);
@@ -3362,8 +3817,7 @@ static gint imap_status(IMAPSession *session, IMAPFolder *folder,
 
 static void imap_free_capabilities(IMAPSession *session)
 {
-       slist_free_strings(session->capability);
-       g_slist_free(session->capability);
+       slist_free_strings_full(session->capability);
        session->capability = NULL;
 }
 
@@ -3379,7 +3833,7 @@ static gint imap_cmd_login(IMAPSession *session,
        if (!strcmp(type, "LOGIN") && imap_has_capability(session, "LOGINDISABLED")) {
                gint ok = MAILIMAP_ERROR_BAD_STATE;
                if (imap_has_capability(session, "STARTTLS")) {
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
+#ifdef USE_GNUTLS
                        log_warning(LOG_PROTOCOL, _("Server requires TLS to log in.\n"));
                        ok = imap_cmd_starttls(session);
                        if (ok != MAILIMAP_NO_ERROR) {
@@ -3389,7 +3843,7 @@ static gint imap_cmd_login(IMAPSession *session,
                                /* refresh capas */
                                imap_free_capabilities(session);
                                if ((r = imap_get_capabilities(session)) != MAILIMAP_NO_ERROR) {
-                                       imap_handle_error(SESSION(session), r);
+                                       imap_handle_error(SESSION(session), NULL, r);
                                        log_warning(LOG_PROTOCOL, _("Can't refresh capabilities.\n"));
                                        return r;
                                }
@@ -3400,11 +3854,11 @@ static gint imap_cmd_login(IMAPSession *session,
                                        "has been compiled without OpenSSL "
                                        "support.\n"),
                                        SESSION(session)->server);
-                       return MAILIMAP_ERROR_BAD_STATE;
+                       return MAILIMAP_ERROR_LOGIN;
 #endif
                } else {
                        log_error(LOG_PROTOCOL, _("Server logins are disabled.\n"));
-                       return MAILIMAP_ERROR_BAD_STATE;
+                       return MAILIMAP_ERROR_LOGIN;
                }
        }
 
@@ -3414,7 +3868,7 @@ static gint imap_cmd_login(IMAPSession *session,
                        type);
        r = imap_threaded_login(session->folder, user, pass, type);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                log_print(LOG_PROTOCOL, "IMAP4< Error logging in to %s\n",
                                SESSION(session)->server);
                ok = r;
@@ -3433,7 +3887,7 @@ static gint imap_cmd_noop(IMAPSession *session)
        
        r = imap_threaded_noop(session->folder, &exists, &recent, &expunge, &unseen, &uidnext, &uidval);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                debug_print("noop err %d\n", r);
                return r;
        }
@@ -3465,7 +3919,7 @@ static gint imap_cmd_noop(IMAPSession *session)
        return MAILIMAP_NO_ERROR;
 }
 
-#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
+#ifdef USE_GNUTLS
 static gint imap_cmd_starttls(IMAPSession *session)
 {
        int r;
@@ -3473,7 +3927,7 @@ static gint imap_cmd_starttls(IMAPSession *session)
        r = imap_threaded_starttls(session->folder, 
                SESSION(session)->server, SESSION(session)->port);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                debug_print("starttls err %d\n", r);
                return r;
        }
@@ -3484,14 +3938,14 @@ static gint imap_cmd_starttls(IMAPSession *session)
 static gint imap_cmd_select(IMAPSession *session, const gchar *folder,
                            gint *exists, gint *recent, gint *unseen,
                            guint32 *uid_validity, gint *can_create_flags,
-                           gboolean block)
+                           GSList **ok_flags, gboolean block)
 {
        int r;
 
        r = imap_threaded_select(session->folder, folder,
-                                exists, recent, unseen, uid_validity, can_create_flags);
+                                exists, recent, unseen, uid_validity, can_create_flags, ok_flags);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                debug_print("select err %d\n", r);
                return r;
        }
@@ -3504,7 +3958,7 @@ static gint imap_cmd_close(IMAPSession *session)
 
        r = imap_threaded_close(session->folder);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                debug_print("close err %d\n", r);
                return r;
        }
@@ -3525,7 +3979,7 @@ static gint imap_cmd_examine(IMAPSession *session, const gchar *folder,
        r = imap_threaded_examine(session->folder, folder,
                                  exists, recent, unseen, uid_validity);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                debug_print("examine err %d\n", r);
                
                return r;
@@ -3539,8 +3993,7 @@ static gint imap_cmd_create(IMAPSession *session, const gchar *folder)
 
        r = imap_threaded_create(session->folder, folder);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
-               
+               imap_handle_error(SESSION(session), NULL, r);
                return r;
        }
 
@@ -3555,7 +4008,7 @@ static gint imap_cmd_rename(IMAPSession *session, const gchar *old_folder,
        r = imap_threaded_rename(session->folder, old_folder,
                                 new_folder);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                return r;
        }
 
@@ -3569,7 +4022,7 @@ static gint imap_cmd_delete(IMAPSession *session, const gchar *folder)
 
        r = imap_threaded_delete(session->folder, folder);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                return r;
        }
 
@@ -3602,9 +4055,9 @@ static void *imap_cmd_fetch_thread(void *data)
                                                uid, 0, filename);
        }
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                debug_print("fetch err %d\n", r);
-               return GINT_TO_POINTER(MAILIMAP_ERROR_BAD_STATE);
+               return GINT_TO_POINTER(r);
        }
        return GINT_TO_POINTER(MAILIMAP_NO_ERROR);
 }
@@ -3637,23 +4090,25 @@ static gint imap_cmd_fetch(IMAPSession *session, guint32 uid,
 }
 
 
-static gint imap_cmd_append(IMAPSession *session, const gchar *destfolder,
+static gint imap_cmd_append(IMAPSession *session, 
+                           IMAPFolderItem *item,
+                           const gchar *destfolder,
                            const gchar *file, IMAPFlags flags, 
                            guint32 *new_uid)
 {
        struct mailimap_flag_list * flag_list;
        int r;
        
-       g_return_val_if_fail(file != NULL, MAILIMAP_ERROR_BAD_STATE);
+       cm_return_val_if_fail(file != NULL, MAILIMAP_ERROR_BAD_STATE);
 
-       flag_list = imap_flag_to_lep(flags, NULL);
+       flag_list = imap_flag_to_lep(item, flags, NULL);
        lock_session(session);
        r = imap_threaded_append(session->folder, destfolder,
                         file, flag_list, (int *)new_uid);
        mailimap_flag_list_free(flag_list);
 
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                debug_print("append err %d\n", r);
                return r;
        }
@@ -3664,7 +4119,7 @@ static gint imap_cmd_append(IMAPSession *session, const gchar *destfolder,
 }
 
 static gint imap_cmd_copy(IMAPSession *session, struct mailimap_set * set,
-                         const gchar *destfolder, GRelation *uid_mapping,
+                         const gchar *destfolder,
                          struct mailimap_set **source, struct mailimap_set **dest)
 {
        int r;
@@ -3675,21 +4130,23 @@ static gint imap_cmd_copy(IMAPSession *session, struct mailimap_set * set,
 
        r = imap_threaded_copy(session->folder, set, destfolder, source, dest);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                return r;
        }
 
        return MAILIMAP_NO_ERROR;
 }
 
-static gint imap_cmd_store(IMAPSession *session, struct mailimap_set * set,
+static gint imap_cmd_store(IMAPSession *session, 
+                          IMAPFolderItem *item,
+                          struct mailimap_set * set,
                           IMAPFlags flags, GSList *tags, int do_add)
 {
        int r;
        struct mailimap_flag_list * flag_list = NULL;
        struct mailimap_store_att_flags * store_att_flags;
        
-       flag_list = imap_flag_to_lep(flags, tags);
+       flag_list = imap_flag_to_lep(item, flags, tags);
 
        if (do_add)
                store_att_flags =
@@ -3701,17 +4158,20 @@ static gint imap_cmd_store(IMAPSession *session, struct mailimap_set * set,
        r = imap_threaded_store(session->folder, set, store_att_flags);
        mailimap_store_att_flags_free(store_att_flags);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                return r;
        }
        
        return MAILIMAP_NO_ERROR;
 }
 
-static gint imap_cmd_expunge(IMAPSession *session)
+static gint imap_cmd_expunge(IMAPSession *session, gboolean do_expunge)
 {
        int r;
        
+       if (!do_expunge)
+               return MAILIMAP_NO_ERROR;
+
        if (prefs_common.work_offline && 
            !inc_offline_should_override(FALSE,
                _("Claws Mail needs network access in order "
@@ -3721,13 +4181,22 @@ static gint imap_cmd_expunge(IMAPSession *session)
 
        r = imap_threaded_expunge(session->folder);
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                return r;
        }
 
        return MAILIMAP_NO_ERROR;
 }
 
+gint imap_expunge(Folder *folder, FolderItem *item)
+{
+       IMAPSession *session = imap_session_get(folder);
+       if (session == NULL)
+               return -1;
+       
+       return imap_cmd_expunge(session, TRUE);
+}
+
 static void imap_path_separator_subst(gchar *str, gchar separator)
 {
        gchar *p;
@@ -3756,7 +4225,7 @@ static gboolean imap_rename_folder_func(GNode *node, gpointer data)
        gchar *new_itempath;
        gint oldpathlen;
        IMAPSession *session = imap_session_get(item->folder);
-
+       gint ok = MAILIMAP_NO_ERROR;
        oldpathlen = strlen(oldpath);
        if (strncmp(oldpath, item->path, oldpathlen) != 0) {
                g_warning("path doesn't match: %s, %s\n", oldpath, item->path);
@@ -3771,11 +4240,11 @@ static gboolean imap_rename_folder_func(GNode *node, gpointer data)
                new_itempath = g_strconcat(newpath, G_DIR_SEPARATOR_S, base,
                                           NULL);
 
-       real_oldpath = imap_get_real_path(session, IMAP_FOLDER(item->folder), item->path);
+       real_oldpath = imap_get_real_path(session, IMAP_FOLDER(item->folder), item->path, &ok);
        g_free(item->path);
        item->path = new_itempath;
        
-       real_newpath = imap_get_real_path(session, IMAP_FOLDER(item->folder), item->path);
+       real_newpath = imap_get_real_path(session, IMAP_FOLDER(item->folder), item->path, &ok);
        
        imap_threaded_subscribe(item->folder, real_oldpath, FALSE);
        imap_threaded_subscribe(item->folder, real_newpath, TRUE);
@@ -3790,7 +4259,7 @@ static gint get_list_of_uids(IMAPSession *session, Folder *folder, IMAPFolderIte
        GSList *uidlist, *elem;
        int r = -1;
        clist * lep_uidlist;
-       gint ok, nummsgs = 0, lastuid_old;
+       gint ok, nummsgs = 0;
 
        if (session == NULL) {
                return -1;
@@ -3808,20 +4277,20 @@ static gint get_list_of_uids(IMAPSession *session, Folder *folder, IMAPFolderIte
        uidlist = NULL;
        
        if (folder->account && folder->account->low_bandwidth) {
-               r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_SIMPLE, NULL,
-                                &lep_uidlist);
+               r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_SIMPLE,
+                               NULL, NULL, &lep_uidlist);
        }
        
        if (r == MAILIMAP_NO_ERROR) {
                GSList * fetchuid_list =
-                       imap_uid_list_from_lep(lep_uidlist);
+                       imap_uid_list_from_lep(lep_uidlist, NULL);
                mailimap_search_result_free(lep_uidlist);
                
                uidlist = g_slist_concat(fetchuid_list, uidlist);
        } else {
                carray * lep_uidtab;
                if (r != -1) { /* inited */
-                       imap_handle_error(SESSION(session), r);
+                       imap_handle_error(SESSION(session), NULL, r);
                        if (is_fatal(r))
                                return -1;
                }
@@ -3836,12 +4305,10 @@ static gint get_list_of_uids(IMAPSession *session, Folder *folder, IMAPFolderIte
        }
        
        if (r != MAILIMAP_NO_ERROR) {
-               imap_handle_error(SESSION(session), r);
+               imap_handle_error(SESSION(session), NULL, r);
                return -1;
        }
 
-       lastuid_old = item->lastuid;
-
        for (elem = uidlist; elem != NULL; elem = g_slist_next(elem)) {
                guint msgnum;
 
@@ -3866,7 +4333,6 @@ gint imap_get_num_list(Folder *folder, FolderItem *_item, GSList **msgnum_list,
        gint nummsgs;
        GSList *uidlist = NULL;
        gchar *dir;
-       gboolean selected_folder;
        gint known_list_len = 0;
        debug_print("get_num_list\n");
        
@@ -3910,9 +4376,6 @@ gint imap_get_num_list(Folder *folder, FolderItem *_item, GSList **msgnum_list,
                statusbar_print_all(_("Scanning folder %s ..."),
                                      FOLDER_ITEM(item)->folder->name);
 
-       selected_folder = (session->mbox != NULL) &&
-                         (!strcmp(session->mbox, item->item.path));
-       
        if (item->should_trash_cache) {
                *old_uids_valid = FALSE;
                debug_print("get_num_list: trashing num list\n");
@@ -4200,6 +4663,19 @@ void imap_change_flags(Folder *folder, FolderItem *item, MsgInfo *msginfo, MsgPe
        if ( MSG_IS_REPLIED(msginfo->flags) && !(newflags & MSG_REPLIED))
                flags_unset |= IMAP_FLAG_ANSWERED;
 
+       if (!MSG_IS_FORWARDED(msginfo->flags) &&  (newflags & MSG_FORWARDED))
+               flags_set |= IMAP_FLAG_FORWARDED;
+       if ( MSG_IS_FORWARDED(msginfo->flags) && !(newflags & MSG_FORWARDED))
+               flags_unset |= IMAP_FLAG_FORWARDED;
+
+       if (!MSG_IS_SPAM(msginfo->flags) &&  (newflags & MSG_SPAM)) {
+               flags_set |= IMAP_FLAG_SPAM;
+               flags_unset |= IMAP_FLAG_HAM;
+       }
+       if ( MSG_IS_SPAM(msginfo->flags) && !(newflags & MSG_SPAM)) {
+               flags_set |= IMAP_FLAG_HAM;
+               flags_unset |= IMAP_FLAG_SPAM;
+       }
        if (!MSG_IS_DELETED(msginfo->flags) &&  (newflags & MSG_DELETED))
                flags_set |= IMAP_FLAG_DELETED;
        if ( MSG_IS_DELETED(msginfo->flags) && !(newflags & MSG_DELETED))
@@ -4258,14 +4734,14 @@ void imap_change_flags(Folder *folder, FolderItem *item, MsgInfo *msginfo, MsgPe
        } else {
                debug_print("IMAP changing flags\n");
                if (flags_set) {
-                       ok = imap_set_message_flags(session, &numlist, flags_set, NULL, TRUE);
+                       ok = imap_set_message_flags(session, IMAP_FOLDER_ITEM(item), &numlist, flags_set, NULL, TRUE);
                        if (ok != MAILIMAP_NO_ERROR) {
                                return;
                        }
                }
 
                if (flags_unset) {
-                       ok = imap_set_message_flags(session, &numlist, flags_unset, NULL, FALSE);
+                       ok = imap_set_message_flags(session, IMAP_FOLDER_ITEM(item), &numlist, flags_unset, NULL, FALSE);
                        if (ok != MAILIMAP_NO_ERROR) {
                                return;
                        }
@@ -4299,21 +4775,14 @@ static gint imap_remove_msg(Folder *folder, FolderItem *item, gint uid)
        numlist.data = GINT_TO_POINTER(uid);
        
        ok = imap_set_message_flags
-               (session, &numlist, IMAP_FLAG_DELETED, NULL, TRUE);
+               (session, IMAP_FOLDER_ITEM(item), &numlist, IMAP_FLAG_DELETED, NULL, TRUE);
        if (ok != MAILIMAP_NO_ERROR) {
                log_warning(LOG_PROTOCOL, _("can't set deleted flags: %d\n"), uid);
                return ok;
        }
 
-       if (!session->uidplus) {
-               ok = imap_cmd_expunge(session);
-       } else {
-               gchar *uidstr;
+       ok = imap_cmd_expunge(session, folder->account->imap_use_trash);
 
-               uidstr = g_strdup_printf("%u", uid);
-               ok = imap_cmd_expunge(session);
-               g_free(uidstr);
-       }
        if (ok != MAILIMAP_NO_ERROR) {
                log_warning(LOG_PROTOCOL, _("can't expunge\n"));
                return ok;
@@ -4346,6 +4815,19 @@ static guint gslist_find_next_num(MsgNumberList **list, guint num)
        return elem != NULL ? GPOINTER_TO_INT(elem->data) : (gint)-1;
 }
 
+static gboolean flag_ok(IMAPFolderItem *item, guint flag)
+{
+       if (item->ok_flags && g_slist_find(item->ok_flags, GUINT_TO_POINTER(flag))) {
+               debug_print("flag %d is OK\n", flag);
+               return TRUE;
+       }
+       if (item->can_create_flags == ITEM_CAN_CREATE_FLAGS) {
+               debug_print("creating flags is OK\n");
+               return TRUE;
+       }
+       return FALSE;
+}
+
 /*
  * NEW and DELETED flags are not syncronized
  * - The NEW/RECENT flags in IMAP folders can not really be directly
@@ -4359,7 +4841,7 @@ typedef struct _get_flags_data {
        Folder *folder;
        FolderItem *item;
        MsgInfoList *msginfo_list;
-       GRelation *msgflags;
+       GHashTable *msgflags;
        gboolean full_search;
        gboolean done;
 } get_flags_data;
@@ -4370,7 +4852,7 @@ static /*gint*/ void *imap_get_flags_thread(void *data)
        Folder *folder = stuff->folder;
        FolderItem *fitem = (FolderItem *) stuff->item;
        MsgInfoList *msginfo_list = stuff->msginfo_list;
-       GRelation *msgflags = stuff->msgflags;
+       GHashTable *msgflags = stuff->msgflags;
        GSList *elem;
        carray * lep_uidtab;
        IMAPSession *session;
@@ -4380,8 +4862,7 @@ static /*gint*/ void *imap_get_flags_thread(void *data)
        GHashTable *tags_hash = NULL;
        gboolean full_search = stuff->full_search;
        GSList *sorted_list = NULL;
-       GSList *unseen = NULL, *answered = NULL, *flagged = NULL, *deleted = NULL;
-       GSList *p_unseen, *p_answered, *p_flagged, *p_deleted;
+       GSList *unseen = NULL, *answered = NULL, *flagged = NULL, *deleted = NULL, *forwarded = NULL, *spam = NULL;
        GSList *seq_list, *cur;
        gboolean reverse_seen = FALSE;
        gboolean selected_folder;
@@ -4431,74 +4912,102 @@ static /*gint*/ void *imap_get_flags_thread(void *data)
 
                        imapset = cur->data;
                        if (reverse_seen) {
-                               r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_SEEN,
+                               r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_SEEN, NULL,
                                                         full_search ? NULL:imapset, &lep_uidlist);
                        }
                        else {
                                r = imap_threaded_search(folder,
-                                                        IMAP_SEARCH_TYPE_UNSEEN,
+                                                        IMAP_SEARCH_TYPE_UNSEEN, NULL,
                                                         full_search ? NULL:imapset, &lep_uidlist);
                        }
                        if (r == MAILIMAP_NO_ERROR) {
                                GSList * uidlist;
 
-                               uidlist = imap_uid_list_from_lep(lep_uidlist);
+                               uidlist = imap_uid_list_from_lep(lep_uidlist, NULL);
                                mailimap_search_result_free(lep_uidlist);
 
                                unseen = g_slist_concat(unseen, uidlist);
                        } else {
-                               imap_handle_error(SESSION(session), r);
+                               imap_handle_error(SESSION(session), NULL, r);
                                goto bail;
                        }
 
-                       r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_FLAGGED,
+                       r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_FLAGGED, NULL,
                                                 full_search ? NULL:imapset, &lep_uidlist);
                        if (r == MAILIMAP_NO_ERROR) {
                                GSList * uidlist;
 
-                               uidlist = imap_uid_list_from_lep(lep_uidlist);
+                               uidlist = imap_uid_list_from_lep(lep_uidlist, NULL);
                                mailimap_search_result_free(lep_uidlist);
 
                                flagged = g_slist_concat(flagged, uidlist);
                        } else {
-                               imap_handle_error(SESSION(session), r);
+                               imap_handle_error(SESSION(session), NULL, r);
                                goto bail;
                        }
 
                        if (fitem->opened || fitem->processing_pending || fitem == folder->inbox) {
-                               r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_ANSWERED,
+                               r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_ANSWERED, NULL,
                                                         full_search ? NULL:imapset, &lep_uidlist);
                                if (r == MAILIMAP_NO_ERROR) {
                                        GSList * uidlist;
 
-                                       uidlist = imap_uid_list_from_lep(lep_uidlist);
+                                       uidlist = imap_uid_list_from_lep(lep_uidlist, NULL);
                                        mailimap_search_result_free(lep_uidlist);
 
                                        answered = g_slist_concat(answered, uidlist);
                                } else {
-                                       imap_handle_error(SESSION(session), r);
+                                       imap_handle_error(SESSION(session), NULL, r);
                                        goto bail;
                                }
 
-                               r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_DELETED,
+                               if (flag_ok(IMAP_FOLDER_ITEM(fitem), IMAP_FLAG_FORWARDED)) {
+                                       r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_FORWARDED, NULL,
+                                                                full_search ? NULL:imapset, &lep_uidlist);
+                                       if (r == MAILIMAP_NO_ERROR) {
+                                               GSList * uidlist;
+
+                                               uidlist = imap_uid_list_from_lep(lep_uidlist, NULL);
+                                               mailimap_search_result_free(lep_uidlist);
+
+                                               forwarded = g_slist_concat(forwarded, uidlist);
+                                       } else {
+                                               imap_handle_error(SESSION(session), NULL, r);
+                                               goto bail;
+                                       }
+                               }
+
+                               if (flag_ok(IMAP_FOLDER_ITEM(fitem), IMAP_FLAG_SPAM)) {
+                                       r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_SPAM, NULL,
+                                                                full_search ? NULL:imapset, &lep_uidlist);
+                                       if (r == MAILIMAP_NO_ERROR) {
+                                               GSList * uidlist;
+
+                                               uidlist = imap_uid_list_from_lep(lep_uidlist, NULL);
+                                               mailimap_search_result_free(lep_uidlist);
+
+                                               spam = g_slist_concat(spam, uidlist);
+                                       } else {
+                                               imap_handle_error(SESSION(session), NULL, r);
+                                               goto bail;
+                                       }
+                               }
+
+                               r = imap_threaded_search(folder, IMAP_SEARCH_TYPE_DELETED, NULL,
                                                         full_search ? NULL:imapset, &lep_uidlist);
                                if (r == MAILIMAP_NO_ERROR) {
                                        GSList * uidlist;
 
-                                       uidlist = imap_uid_list_from_lep(lep_uidlist);
+                                       uidlist = imap_uid_list_from_lep(lep_uidlist, NULL);
                                        mailimap_search_result_free(lep_uidlist);
 
                                        deleted = g_slist_concat(deleted, uidlist);
                                } else {
-                                       imap_handle_error(SESSION(session), r);
+                                       imap_handle_error(SESSION(session), NULL, r);
                                        goto bail;
                                }
                        }
                }
-               p_unseen = unseen;
-               p_answered = answered;
-               p_flagged = flagged;
-               p_deleted = deleted;
 
        } else {
                r = imap_threaded_fetch_uid_flags(folder, 1, &lep_uidtab);
@@ -4508,7 +5017,7 @@ static /*gint*/ void *imap_get_flags_thread(void *data)
                        imap_flags_hash_from_lep_uid_flags_tab(lep_uidtab, flags_hash, tags_hash);
                        imap_fetch_uid_flags_list_free(lep_uidtab);
                } else {
-                       imap_handle_error(SESSION(session), r);
+                       imap_handle_error(SESSION(session), NULL, r);
                        goto bail;
                }
        }
@@ -4525,17 +5034,17 @@ bail:
                msginfo = (MsgInfo *) elem->data;
                flags = msginfo->flags.perm_flags;
                wasnew = (flags & MSG_NEW);
-               oldflags = flags & ~(MSG_NEW|MSG_UNREAD|MSG_REPLIED|MSG_MARKED|MSG_DELETED);
+               oldflags = flags & ~(MSG_NEW|MSG_UNREAD|MSG_REPLIED|MSG_FORWARDED|MSG_MARKED|MSG_DELETED|MSG_SPAM);
 
                if (folder->account && folder->account->low_bandwidth) {
                        if (fitem->opened || fitem->processing_pending || fitem == folder->inbox) {
-                               flags &= ~((reverse_seen ? 0 : MSG_UNREAD | MSG_NEW) | MSG_REPLIED | MSG_MARKED);
+                               flags &= ~((reverse_seen ? 0 : MSG_UNREAD | MSG_NEW) | MSG_REPLIED | MSG_FORWARDED | MSG_MARKED | MSG_SPAM);
                        } else {
                                flags &= ~((reverse_seen ? 0 : MSG_UNREAD | MSG_NEW | MSG_MARKED));
                        }
                        if (reverse_seen)
                                flags |= MSG_UNREAD | (wasnew ? MSG_NEW : 0);
-                       if (gslist_find_next_num(&p_unseen, msginfo->msgnum) == msginfo->msgnum) {
+                       if (gslist_find_next_num(&unseen, msginfo->msgnum) == msginfo->msgnum) {
                                if (!reverse_seen) {
                                        flags |= MSG_UNREAD | (wasnew ? MSG_NEW : 0);
                                } else {
@@ -4543,17 +5052,25 @@ bail:
                                }
                        }
 
-                       if (gslist_find_next_num(&p_flagged, msginfo->msgnum) == msginfo->msgnum)
+                       if (gslist_find_next_num(&flagged, msginfo->msgnum) == msginfo->msgnum)
                                flags |= MSG_MARKED;
                        else
                                flags &= ~MSG_MARKED;
 
                        if (fitem->opened || fitem->processing_pending || fitem == folder->inbox) {
-                               if (gslist_find_next_num(&p_answered, msginfo->msgnum) == msginfo->msgnum)
+                               if (gslist_find_next_num(&answered, msginfo->msgnum) == msginfo->msgnum)
                                        flags |= MSG_REPLIED;
                                else
                                        flags &= ~MSG_REPLIED;
-                               if (gslist_find_next_num(&p_deleted, msginfo->msgnum) == msginfo->msgnum)
+                               if (gslist_find_next_num(&forwarded, msginfo->msgnum) == msginfo->msgnum)
+                                       flags |= MSG_FORWARDED;
+                               else
+                                       flags &= ~MSG_FORWARDED;
+                               if (gslist_find_next_num(&spam, msginfo->msgnum) == msginfo->msgnum)
+                                       flags |= MSG_SPAM;
+                               else
+                                       flags &= ~MSG_SPAM;
+                               if (gslist_find_next_num(&deleted, msginfo->msgnum) == msginfo->msgnum)
                                        flags |= MSG_DELETED;
                                else
                                        flags &= ~MSG_DELETED;
@@ -4575,10 +5092,9 @@ bail:
                                GSList *tags = g_hash_table_lookup(tags_hash, GINT_TO_POINTER(msginfo->msgnum));
                                GSList *cur;
 
-                               if (tags != NULL) {
-                                       g_slist_free(msginfo->tags);
-                                       msginfo->tags = NULL;
-                               }
+                               g_slist_free(msginfo->tags);
+                               msginfo->tags = NULL;
+
                                for (cur = tags; cur; cur = cur->next) {
                                        gchar *real_tag = imap_modified_utf7_to_utf8(cur->data, TRUE);
                                        gint id = 0;
@@ -4587,19 +5103,16 @@ bail:
                                                id = tags_add_tag(real_tag);
                                                got_alien_tags = TRUE;
                                        }
-                                       if (!g_slist_find(msginfo->tags, GINT_TO_POINTER(id))) {
-                                               msginfo->tags = g_slist_append(
+                                       msginfo->tags = g_slist_append(
                                                                msginfo->tags,
                                                                GINT_TO_POINTER(id));
-                                       }
                                        g_free(real_tag);
                                }
-                               slist_free_strings(tags);
-                               g_slist_free(tags);
+                               slist_free_strings_full(tags);
                        }
                }
 
-               g_relation_insert(msgflags, msginfo, GINT_TO_POINTER(flags));
+               g_hash_table_insert(msgflags, msginfo, GINT_TO_POINTER(flags));
        }
        
        if (got_alien_tags) {
@@ -4616,6 +5129,8 @@ bail:
        g_slist_free(flagged);
        g_slist_free(deleted);
        g_slist_free(answered);
+       g_slist_free(forwarded);
+       g_slist_free(spam);
        g_slist_free(unseen);
        g_slist_free(sorted_list);
 
@@ -4624,7 +5139,7 @@ bail:
 }
 
 static gint imap_get_flags(Folder *folder, FolderItem *item,
-                           MsgInfoList *msginfo_list, GRelation *msgflags)
+                           MsgInfoList *msginfo_list, GHashTable *msgflags)
 {
        gint result;
        get_flags_data *data = g_new0(get_flags_data, 1);
@@ -4688,7 +5203,8 @@ static gboolean process_flags(gpointer key, gpointer value, gpointer user_data)
                         NULL, NULL, NULL, NULL, NULL, FALSE);
        }
        if (ok == MAILIMAP_NO_ERROR) {
-               ok = imap_set_message_flags(session, data->msglist, flags_value, NULL, flags_set);
+               ok = imap_set_message_flags(session, IMAP_FOLDER_ITEM(item),
+                       data->msglist, flags_value, NULL, flags_set);
        } else {
                g_warning("can't select mailbox %s\n", item->path);
        }
@@ -4730,7 +5246,8 @@ static gboolean process_tags(gpointer key, gpointer value, gpointer user_data)
                GSList list;
                list.data = str;
                list.next = NULL;
-               ok = imap_set_message_flags(session, data->msglist, 0, &list, tags_set);
+               ok = imap_set_message_flags(session, IMAP_FOLDER_ITEM(item),
+                       data->msglist, 0, &list, tags_set);
        } else {
                g_warning("can't select mailbox %s\n", item->path);
        }
@@ -4843,19 +5360,20 @@ static int imap_flags_to_flags(struct mailimap_mbx_list_flags * imap_flags)
     }
   }
   
-  for(cur = clist_begin(imap_flags->mbf_oflags) ; cur != NULL ;
-      cur = clist_next(cur)) {
-    struct mailimap_mbx_list_oflag * oflag;
-    
-    oflag = clist_content(cur);
-    
-    switch (oflag->of_type) {
-    case MAILIMAP_MBX_LIST_OFLAG_NOINFERIORS:
-      flags |= ETPAN_IMAP_MB_NOINFERIORS;
-      break;
+  if (imap_flags->mbf_oflags) {
+    for(cur = clist_begin(imap_flags->mbf_oflags) ; cur != NULL ;
+       cur = clist_next(cur)) {
+      struct mailimap_mbx_list_oflag * oflag;
+
+      oflag = clist_content(cur);
+
+      switch (oflag->of_type) {
+      case MAILIMAP_MBX_LIST_OFLAG_NOINFERIORS:
+       flags |= ETPAN_IMAP_MB_NOINFERIORS;
+       break;
+      }
     }
-  }
-  
+  }  
   return flags;
 }
 
@@ -4865,74 +5383,75 @@ static GSList * imap_list_from_lep(IMAPFolder * folder,
        clistiter * iter;
        GSList * item_list = NULL, *llast = NULL;
        
-       for(iter = clist_begin(list) ; iter != NULL ;
-           iter = clist_next(iter)) {
-               struct mailimap_mailbox_list * mb;
-               int flags;
-               char delimiter;
-               char * name;
-               char * dup_name;
-               gchar * base;
-               gchar * loc_name;
-               gchar * loc_path;
-               FolderItem *new_item;
-               
-               mb = clist_content(iter);
+       if (list) {
+               for(iter = clist_begin(list) ; iter != NULL ;
+                   iter = clist_next(iter)) {
+                       struct mailimap_mailbox_list * mb;
+                       int flags;
+                       char delimiter;
+                       char * name;
+                       char * dup_name;
+                       gchar * base;
+                       gchar * loc_name;
+                       gchar * loc_path;
+                       FolderItem *new_item;
+
+                       mb = clist_content(iter);
+
+                       if (mb == NULL)
+                               continue;
 
-               if (mb == NULL)
-                       continue;
+                       flags = 0;
+                       if (mb->mb_flag != NULL)
+                               flags = imap_flags_to_flags(mb->mb_flag);
 
-               flags = 0;
-               if (mb->mb_flag != NULL)
-                       flags = imap_flags_to_flags(mb->mb_flag);
-               
-               delimiter = mb->mb_delimiter;
-               name = mb->mb_name;
-               
-               dup_name = strdup(name);                
-               if (delimiter != '\0')
-                       subst_char(dup_name, delimiter, '/');
-               
-               base = g_path_get_basename(dup_name);
-               if (base[0] == '.') {
-                       g_free(base);
-                       free(dup_name);
-                       continue;
-               }
-               if (!all && path_cmp(name, real_path) == 0) {
+                       delimiter = mb->mb_delimiter;
+                       name = mb->mb_name;
+
+                       dup_name = strdup(name);                
+                       if (delimiter != '\0')
+                               subst_char(dup_name, delimiter, '/');
+
+                       base = g_path_get_basename(dup_name);
+                       if (base[0] == '.') {
+                               g_free(base);
+                               free(dup_name);
+                               continue;
+                       }
+                       if (!all && path_cmp(name, real_path) == 0) {
+                               g_free(base);
+                               free(dup_name);
+                               continue;
+                       }
+
+                       if (!all && dup_name[strlen(dup_name)-1] == '/') {
+                               dup_name[strlen(dup_name)-1] = '\0';
+                       }
+
+                       loc_name = imap_modified_utf7_to_utf8(base, FALSE);
+                       loc_path = imap_modified_utf7_to_utf8(dup_name, FALSE);
+
+                       new_item = folder_item_new(FOLDER(folder), loc_name, loc_path);
+                       if ((flags & ETPAN_IMAP_MB_NOINFERIORS) != 0)
+                               new_item->no_sub = TRUE;
+                       if (strcmp(dup_name, "INBOX") != 0 &&
+                           ((flags & ETPAN_IMAP_MB_NOSELECT) != 0))
+                               new_item->no_select = TRUE;
+
+                       if (item_list == NULL)
+                               llast = item_list = g_slist_append(item_list, new_item);
+                       else {
+                               llast = g_slist_append(llast, new_item);
+                               llast = llast->next;
+                       }
+                       debug_print("folder '%s' found.\n", loc_path);
                        g_free(base);
-                       free(dup_name);
-                       continue;
-               }
+                       g_free(loc_path);
+                       g_free(loc_name);
 
-               if (!all && dup_name[strlen(dup_name)-1] == '/') {
-                       dup_name[strlen(dup_name)-1] = '\0';
-               }
-               
-               loc_name = imap_modified_utf7_to_utf8(base, FALSE);
-               loc_path = imap_modified_utf7_to_utf8(dup_name, FALSE);
-               
-               new_item = folder_item_new(FOLDER(folder), loc_name, loc_path);
-               if ((flags & ETPAN_IMAP_MB_NOINFERIORS) != 0)
-                       new_item->no_sub = TRUE;
-               if (strcmp(dup_name, "INBOX") != 0 &&
-                   ((flags & ETPAN_IMAP_MB_NOSELECT) != 0))
-                       new_item->no_select = TRUE;
-               
-               if (item_list == NULL)
-                       llast = item_list = g_slist_append(item_list, new_item);
-               else {
-                       llast = g_slist_append(llast, new_item);
-                       llast = llast->next;
+                       free(dup_name);
                }
-               debug_print("folder '%s' found.\n", loc_path);
-               g_free(base);
-               g_free(loc_path);
-               g_free(loc_name);
-               
-               free(dup_name);
-       }
-       
+       }       
        return item_list;
 }
 
@@ -5003,37 +5522,37 @@ static GSList * imap_get_lep_set_from_numlist(IMAPFolder *folder, MsgNumberList
 static GSList * imap_get_lep_set_from_msglist(IMAPFolder *folder, MsgInfoList *msglist)
 {
        MsgNumberList *numlist = NULL;
-       MsgInfoList *cur;
        GSList *seq_list;
 
-       for (cur = msglist; cur != NULL; cur = g_slist_next(cur)) {
-               MsgInfo *msginfo = (MsgInfo *) cur->data;
+       numlist = procmsg_get_number_list_for_msgs(msglist);
 
-               numlist = g_slist_prepend(numlist, GINT_TO_POINTER(msginfo->msgnum));
-       }
-       numlist = g_slist_reverse(numlist);
        seq_list = imap_get_lep_set_from_numlist(folder, numlist);
        g_slist_free(numlist);
 
        return seq_list;
 }
 
-static GSList * imap_uid_list_from_lep(clist * list)
+static GSList * imap_uid_list_from_lep(clist * list, gint* length)
 {
        clistiter * iter;
        GSList * result;
+       gint len = 0;
        
        result = NULL;
        
-       for(iter = clist_begin(list) ; iter != NULL ;
-           iter = clist_next(iter)) {
-               uint32_t * puid;
-               
-               puid = clist_content(iter);
-               result = g_slist_prepend(result, GINT_TO_POINTER(* puid));
+       if (list) {
+               for(iter = clist_begin(list) ; iter != NULL ;
+                   iter = clist_next(iter)) {
+                       uint32_t * puid;
+
+                       puid = clist_content(iter);
+                       result = g_slist_prepend(result, GINT_TO_POINTER(* puid));
+                       len++;
+               }
+               result = g_slist_reverse(result);
        }
-       
-       result = g_slist_reverse(result);
+       if (length)
+               *length = len;
        return result;
 }
 
@@ -5059,9 +5578,6 @@ static void imap_flags_hash_from_lep_uid_flags_tab(carray * list,
                                                   GHashTable * tags_hash)
 {
        unsigned int i;
-       GSList * result;
-       
-       result = NULL;
        
        for(i = 0 ; i < carray_count(list) ; i += 3) {
                uint32_t * puid;
@@ -5082,7 +5598,7 @@ static MsgInfo *imap_envelope_from_lep(struct imap_fetch_env_info * info,
 {
        MsgInfo *msginfo = NULL;
        guint32 uid = 0;
-       size_t size = 0;
+       goffset size = 0;
        MsgFlags flags = {0, 0};
        
        if (info->headers == NULL)
@@ -5097,7 +5613,7 @@ static MsgInfo *imap_envelope_from_lep(struct imap_fetch_env_info * info,
        flags.perm_flags = info->flags;
        
        uid = info->uid;
-       size = info->size;
+       size = (goffset) info->size;
        msginfo = procheader_parse_str(info->headers, flags, FALSE, FALSE);
        
        if (msginfo) {
@@ -5121,7 +5637,7 @@ static void imap_lep_set_free(GSList *seq_list)
        g_slist_free(seq_list);
 }
 
-static struct mailimap_flag_list * imap_flag_to_lep(IMAPFlags flags, GSList *tags)
+static struct mailimap_flag_list * imap_flag_to_lep(IMAPFolderItem *item, IMAPFlags flags, GSList *tags)
 {
        struct mailimap_flag_list * flag_list;
        GSList *cur = tags;
@@ -5143,6 +5659,15 @@ static struct mailimap_flag_list * imap_flag_to_lep(IMAPFlags flags, GSList *tag
        if (IMAP_IS_DRAFT(flags))
                mailimap_flag_list_add(flag_list,
                                       mailimap_flag_new_draft());
+       if (IMAP_IS_FORWARDED(flags) && flag_ok(item, IMAP_FLAG_FORWARDED))
+               mailimap_flag_list_add(flag_list,
+                                      mailimap_flag_new_flag_keyword(strdup(RTAG_FORWARDED)));
+       if (IMAP_IS_SPAM(flags) && flag_ok(item, IMAP_FLAG_SPAM))
+               mailimap_flag_list_add(flag_list,
+                                      mailimap_flag_new_flag_keyword(strdup(RTAG_JUNK)));
+       else if (IMAP_IS_HAM(flags) && flag_ok(item, IMAP_FLAG_HAM))
+               mailimap_flag_list_add(flag_list,
+                                      mailimap_flag_new_flag_keyword(strdup(RTAG_NON_JUNK)));
        
        for (; cur; cur = cur->next) {
                gchar *enc_str = 
@@ -5166,24 +5691,46 @@ void imap_folder_ref(Folder *folder)
        ((IMAPFolder *)folder)->refcnt++;
 }
 
-void imap_disconnect_all(void)
+void imap_disconnect_all(gboolean have_connectivity)
 {
        GList *list;
-       imap_main_set_timeout(1);
+       gboolean short_timeout;
+#ifdef HAVE_NETWORKMANAGER_SUPPORT
+       GError *error;
+#endif
+
+#ifdef HAVE_NETWORKMANAGER_SUPPORT
+       error = NULL;
+       short_timeout = !networkmanager_is_online(&error);
+       if(error) {
+               short_timeout = TRUE;
+               g_error_free(error);
+       }
+#else
+       short_timeout = TRUE;
+#endif
+
+       if(short_timeout)
+               imap_main_set_timeout(1);
+
        for (list = account_get_list(); list != NULL; list = list->next) {
                PrefsAccount *account = list->data;
                if (account->protocol == A_IMAP4) {
                        RemoteFolder *folder = (RemoteFolder *)account->folder;
                        if (folder && folder->session) {
                                IMAPSession *session = (IMAPSession *)folder->session;
-                               imap_threaded_disconnect(FOLDER(folder));
+                               if (have_connectivity)
+                                       imap_threaded_disconnect(FOLDER(folder));
                                SESSION(session)->state = SESSION_DISCONNECTED;
+                               SESSION(session)->sock = NULL;
                                session_destroy(SESSION(session));
                                folder->session = NULL;
                        }
                }
        }
-       imap_main_set_timeout(prefs_common.io_timeout_secs);
+
+       if(short_timeout)
+               imap_main_set_timeout(prefs_common.io_timeout_secs);
 }
 
 void imap_folder_unref(Folder *folder)
@@ -5318,7 +5865,7 @@ FolderClass *imap_get_class(void)
        return &imap_class;
 }
 
-void imap_disconnect_all(void)
+void imap_disconnect_all(gboolean have_connectivity)
 {
 }
 
@@ -5436,9 +5983,8 @@ char* imap_modified_utf7_to_utf8(const char *mbox, gboolean change_spaces)
   unsigned long ucs4, utf16, bitbuf;
   unsigned char base64[256];
   const char *src;
-  char *dst, *res  = malloc(2*strlen(mbox)+1);
+  char *dst, *res  = g_malloc(2*strlen(mbox)+1);
 
-  bitbuf = 0;
   dst = res;
   src = mbox;
   if(!dst) return NULL;
@@ -5527,7 +6073,11 @@ char* imap_utf8_to_modified_utf7(const char *src, gboolean change_spaces)
   unsigned long ucs4 = 0, bitbuf = 0;
 
   /* initialize hex lookup table */
-  char *dst, *res = malloc(2*strlen(src)+1);
+  char *dst, *res;
+
+  if (!src) return NULL;
+
+  res = malloc(2*strlen(src)+1);
   dst = res;
   if(!dst) return NULL;
 
@@ -5568,7 +6118,6 @@ char* imap_utf8_to_modified_utf7(const char *src, gboolean change_spaces)
     /* Encode US-ASCII characters as themselves */
     if (c < 0x80) {
       ucs4 = c;
-      utf8total = 1;
     } else if (utf8total) {
       /* save UTF8 bits into UCS4 */
       ucs4 = (ucs4 << 6) | (c & 0x3FUL);