Hello, first thanks for all the work, I appreciate the attention to security :-)

I have a performance issue I am trying to solve. On my new server it would appear that synchronizing changes between the client and server is taking longer then my previous setup. I have recently upgraded from my old server to a new home (the basis for my comparison),

From:

• Redhat 9.0, uw-imap, using self-signed ssl certificates, on an old p-II.
• Only one email user (me), about 40 mail folders with a few dozen messages in each.
• Performance was never an issue, Mail.app took maybe 20 seconds to sync up minor deletes etc.

To a new home:

• Clean install of Fedora Core 3 on a p4, dovecot-0.99.13-3.FC3.
• Copy of /home/gturner/mail directory to new server, ie existing mbox format from uw-imap.
• Recreated new self-signed certificates on new server, manually added the self-signed certificates, connected with no problems.
• Mail.app client, on OS X 10.3.9 (no Tiger yet).

I deleted the account on Mail.app, and created it again, the first login/sync took a long time, which was expected.

However after that, I noticed that when I first connect or delete a file the sync is slower then the old setup (FYI, I keep "Automatically synchronize changed mailboxes" checked on Mail.app).

A result of this appears to be some corruption of some mailboxes, only one or two, nothing valuable. For example, I delete a file and then clear the trash while things are still syncing. So my current solution is to be patient. :-)

Any suggestions?

I know that I could covert everything over to maildir, but I would like some feedback to see if this would be reasonable.

I also noticed that initially there are 3 'gturner imap' threads and the syncing seems to be flying along. Then the thread count goes to 5 or 6 and sync starts to crawl. I looked for a way to limit the number of spawned threads, but only saw stuff about 'waiting' threads or reference to 1.0.

I have attached my dovecot.conf for reference.

Any help is greatly appreciated, Gord Turner.