aja-lists@tni.org put forth on 1/20/2010 7:56 PM:
One note : In case you're using Debian GNU/Linux, make sure to use Dovecot 1.1.x or 1.2.x from backports instead of Dovecot 1.0.x
I'm runny Debian Lenny Dovecot 1.0.15 and it screams, performance is awesome. I've uncovered no problems as of yet. Then again, as I said previously, this is a very lightly loaded server. And I'm far from exploiting all the features offered.