I posted some ad hoc numbers to the list back in February, one machine
Courier and the other Dovecot using Squirrelmail as the frontend.
http://dovecot.org/list/dovecot/2007-February/019560.html
Now that the server ("Server B") is in production with 1.0.0, the users
are seeing fantastic speed gains. Even just emptying the trash feels a
whole lot snappier than ever...
I know, I remember this... which is one reason I'm betting he's gonna
kick himself pretty hard for not letting me switch them sooner... ;)
--
Best regards,
Charles