Tom Collins wrote:
> Courier-IMAP seems to be putting a heavy load on my server when someone
> accesses a mailbox with a large number of messages in it.  I recently
> scanned the mailboxes on my server, and sent some notices out to clients
> who had boxes with old, unread messages in them.  I think that today
> some have gone online to pick up that mail, and I'm suffering the
> consequences (server load of 14.0+).
> What's the preferred IMAP server for a machine that will have 100-200
> connections (plan for growth...) but may have an occasional mailbox with
> 1000+ messages in it.  I've searched the archives and tried to google
> for "imap server performance" and "imap server comparison" but haven't
> come up with much after an hour.
> My impression is that Dovecot performs well, better than courier, but
> I'm wondering if anyone can offer up some real-world numbers to help me
> make my decision.

We suffered the same problem and came to the same conclusion. Courier
had to go. We installed Binc two years ago and have been very happy so
far. I doesn't even use enough resources to know it is there, I honestly
forget about it.

We looked at Dovecot and may again, but we choose Binc because we needed
maildir++ quota support (which Dovecot now supports).


Google finally, after 7 years, provided a logo for
veterans. Thank you Google. What to do with my signature now?


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