"Mark it as deleted" - I do this, the X icon appears, but I can't seem to find an Expunge/Purge function anywhere in the mailer. When I exit it and come back, all my X icons have been reset and the mails are as good as new.
"Move it to the Trash folder" - I'm thinking this was meant for POP3. It seemed to be working all last night, but when I woke up this morning, everything I deleted last night was back.
I use a couple of mailservers. Let's call them A and B.
For A, I use "Move to Trash Folder" in the Preferences.
I do the following to delete messages:
(1) Delete message with Delete button. The message gets moved from the IMAP Inbox to the IMAP Trash folder.
(2) "Empty Trash" if I want to remove everything from Trash.
I don't see problems with messages returning from Trash with this method.
For mailserver B, I use the "Mark as Deleted" option.
(1) Mark message as deleted
(2) "Compact Folders" to get rid of marked messages permanently.
But that does not work with the mailserver A for which I get the same symptoms you describe. Mailserver A is running wu-imapd on Solaris 8.
Would you know what your mail server is running?
There is a bug report in Bugzilla about this:
http://bugzilla.mozilla.org/show_bug.cgi?id=112657
However, the bug status is NEW and not assigned, as far as I know.
So if it's the same problem, please go to Bugzilla, add a comment and VOTE FOR IT! Hopefully it will be fixed by popular demand
-Derek
