I have just moved our corporate e-mail over to qmail/dovecot and am very happy with the performance. However, I have had two reports of messages going missing which may or may not be directly related to Dovecot.
I was able to observe this in action this morning:
I got the user out of their e-mail client (Mozilla 1.7.2) and forced an email to be delivered. It showed up in Maildir/new.
I had the user log in using our webmail (Squirrelmail) and the message was visible to the client (and correctly moved to Maildir/cur).
The user then logged in using the Mozilla mail client and not only was the message not visible in the client, it was no longer on the disk!
This was completely repeatable, even if I deleted the .INBOX/index files and forced dovecot to rebuild.
For the moment I am thinking this is a client problem, but I thought I'd mention it just in case it rang a bell with someone. I wound up installing 0.99.11 just for grins (I just moved these people to the new server and don't want to risk 1.00-test yet).
I'm also going to look at whatever debugging messages are available in dovecot; it would be useful to see a log of all imap transactions, not just login, so I could confirm that it is the client process requesting that the files be deleted and not somethink with dovecot itself (or some hardware failure).
Thanks
John
-- John Peacock Director of Information Research and Technology Rowman & Littlefield Publishing Group 4501 Forbes Boulevard Suite H Lanham, MD 20706 301-459-3366 x.5010 fax 301-429-5748