+#define MSG_NEW (1U << 0)
+#define MSG_UNREAD (1U << 1)
+#define MSG_MARKED (1U << 2)
+#define MSG_DELETED (1U << 3)
+#define MSG_REPLIED (1U << 4)
+#define MSG_FORWARDED (1U << 5)
+#define MSG_REALLY_DELETED (1U << 6) /* mbox stuff */
+
+#define MSG_CLABEL_SBIT (7) /* start bit of color label */
+#define MAKE_MSG_CLABEL(h, m, l) (((h) << (MSG_CLABEL_SBIT + 2)) | \
+ ((m) << (MSG_CLABEL_SBIT + 1)) | \
+ ((l) << (MSG_CLABEL_SBIT + 0)))
+
+#define MSG_CLABEL_NONE MAKE_MSG_CLABEL(0U, 0U, 0U)
+#define MSG_CLABEL_1 MAKE_MSG_CLABEL(0U, 0U, 1U)
+#define MSG_CLABEL_2 MAKE_MSG_CLABEL(0U, 1U, 0U)
+#define MSG_CLABEL_3 MAKE_MSG_CLABEL(0U, 1U, 1U)
+#define MSG_CLABEL_4 MAKE_MSG_CLABEL(1U, 0U, 0U)
+#define MSG_CLABEL_5 MAKE_MSG_CLABEL(1U, 0U, 1U)
+#define MSG_CLABEL_6 MAKE_MSG_CLABEL(1U, 1U, 0U)
+#define MSG_CLABEL_7 MAKE_MSG_CLABEL(1U, 1U, 1U)
+
+#define MSG_CLABEL_ORANGE MSG_CLABEL_1
+#define MSG_CLABEL_RED MSG_CLABEL_2
+#define MSG_CLABEL_PINK MSG_CLABEL_3
+#define MSG_CLABEL_SKYBLUE MSG_CLABEL_4
+#define MSG_CLABEL_BLUE MSG_CLABEL_5
+#define MSG_CLABEL_GREEN MSG_CLABEL_6
+#define MSG_CLABEL_BROWN MSG_CLABEL_7
+
+#define MSG_IGNORE_THREAD (1U << 10) /* ignore threads */
+#define MSG_LOCKED (1U << 11) /* msg is locked */
+#define MSG_RETRCPT_PENDING (1U << 12) /* return receipt pending */
+/* RESERVED */
+#define MSG_RESERVED_CLAWS (1U << 30) /* for sylpheed-claws */
+#define MSG_RESERVED (1U << 31)
+
+typedef guint32 MsgPermFlags;
+
+#define MSG_CLABEL_FLAG_MASK (MSG_CLABEL_7)
+
+#define MSG_MOVE (1U << 0)
+#define MSG_COPY (1U << 1)
+#define MSG_QUEUED (1U << 16)
+#define MSG_DRAFT (1U << 17)
+#define MSG_ENCRYPTED (1U << 18)
+#define MSG_IMAP (1U << 19)
+#define MSG_NEWS (1U << 20)
+#define MSG_SIGNED (1U << 21)
+#define MSG_MIME (1U << 29)
+#define MSG_CACHED (1U << 31)
+
+typedef guint32 MsgTmpFlags;
+
+#define MSG_CACHED_FLAG_MASK (MSG_MIME | MSG_ENCRYPTED | MSG_SIGNED)