My recent migration from Courier-IMAP to Dovecot has been marred by these errors:
Oct 24 12:12:40 server dovecot: IMAP(juha): Fixed index file ~user/Maildir/.Geekzone/dovecot.index: first_recent_uid_lowwater 431 -> 430 Oct 24 12:12:40 server dovecot: IMAP(juha): Corrupted index file ~user/Maildir/.Geekzone/dovecot.index: Duplicate header extension keywords Oct 24 12:12:40 server dovecot: child 5786 (imap) killed with signal 11
They happen with Thunderbird 1.5.0.7 and I'm using Dovecot 1.0RC7 from the FreeBSD ports.
I think the index corruption may be caused by Tbird's message filtering - I'm asking it to filter certain messages from INBOX to subfolders.
When the error occurs, Tbird pops up an error message saying it can't connect to the mail server, but I don't lose any messages it seems. Instead, I get duplicates and even triplicates when I restart Tbird.
Any work around for this?
-- Juha http://www.geekzone.co.nz/juha