[Dovecot] Dovecot performance under high load (vs. Courier)

[Wojciech Puchar]

>>> wehre your webmail is running and configure the webmail for
>>> using 127.0.0.1 - so only one connection per user is
>>> persistent instead make a new one for each ajax-request
>>
>> Someone benchmarked Dovecot a while ago in this list with and without imapproxy and the results showed that imapproxy simply slowed things down by adding extra latency. This probably isn't true for all installations, but I don't think there's much of a difference either way.
nothing strange. I really wonder if there are available FASTER 
implementations of imap service. Quite probably not.

It's stupid how webmail works but dovecot doesn't have a problem to get 
new connections every now and then. just make sure you didn't set up SSL 
by accident.