4 (The upper item has the greater priority or feasibility... maybe :-)
6 o enhancement of filtering
7 o improvements of addressbook
9 o original icons and logos
10 o more robust IMAP4 response parser
11 o support for some formats other than MH and mbox (ex. Maildir)
12 o priority (Priority:, X-Priority:, X-MSMail-Priority:)
13 o notification of reception (Disposition-Notification-To:)
15 o customization of toolbar
16 o RFC 2231 (MIME filename encoding) compliant
17 o full-text search using Namazu
19 o console mode interface
21 o mailing list manager
22 o inline image display on multipart MIME
25 o make the code cleaner
26 o make the process faster
27 o make the dubious English much decent :)
29 Partially implemented features
30 ==============================
31 . make the network related code much decent
32 (processing of time out, multi-threading etc.)
34 . internationalization / multilingualization
36 . display of HTML messages (composition of HTML message is not planned :-P)
37 . progress display of time-consuming processes
38 . parallel processing between sending-receiving and others
39 . customization of key bindings
43 * multipart MIME (attachments of files)
46 * management of read message on POP server by UIDL
49 * reconnection when connection to news server is broken
51 * preservation of position or size of window
52 * external editor support
54 * extension of quotation format
55 * assignation of location of mail folder
56 * account selection on composition window
57 * posting to newsgroups
58 * completion of mail address
59 * prohibition of multiple execution (with Unix domain socket)
60 * periodical check of newly arrived mails
61 * modification of display color
62 * designate the displayed headers
63 * user-defined headers
65 * list view of newsgroups and subscription of groups from there
68 * full-text search of messages (plain)
70 * regular expression support at filtering
72 * configuration for each folders