As requested, please provide specific and full details of how you have it configured...
I added the following to Thunderbird: mail.imap.auto_subscribe true mail.imap.auto_subscribe_on_open true mail.imap.auto_unsubscribe true [I had to create the keys for this] mail.imap.auto_unsubscribe_from_noselect_folders true [this was already there]
Then i created a new account: IMAP settings: Server name: mail.xxxxxx.com Port: 143 User Name: qwerty [Unix PAM ID] Use Secure Connection: TLS
Outgoing SMTP server: Server name: mail.xxxxxx.com Port: 25 User Name: qwerty [my SASL->PAM userID] Use TLS: checked.
Everything else is default. The moment i exit the account creation window and click on Inbox, "accept server certificate" pops up and woosh.. folders Drafts/Sent/Trash appear with some pretty icons (Inbox was already there). I accept certificate and click "Sent" - POPUP: "The current command did not succeed. The mail server responded: Mailbox doesn't exist: Sent" Dito Trash,Drafts. If i try to Compose and save a message i get: Mailbox does not exist Drafts.
I am using TBird 2.0.0.14 on CentOS 5. I've asked on the TBird forums as well.. My Dovecot is version 1.0.14
I got to sleep see you guys in 10 hours time (if i survive not killing someone :p)