I'm seeing the same behavior with the most recent version of Dovecot I just installed and thunderbird latest in tarball archives. About 3 messages out of 10 time out going to the Sent folder; however, the folder gets the message still. I've compared this to my ISPs uw-imapd instance and my company's courier imap server and I don't see this at all. Some mentioned that the size of the Sent folder may something, I read on the mozillazine forums to compact the Sent mail folder. Neither of these have an effect on the problem I am seeing.
Its interesting that after this occurs that thunderbird then will not open any folder on my odvecot imap mail server until I restart it. -- Michael Perry | Do or do not. There is no try --Master Yoda [EMAIL PROTECTED] | http://www.lnxpowered.org -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]