[HowTo] Replace courier with dovecot

[aseques]

(09-20-2010 11:08 PM)simple Wrote:  The server I tested dovecot on is plain simple ispCP 1.0.5 on Lenny, the only mod used is dovecot instead of courier (mostly after the howto here and some help from the official dovecot/courier howto). Filesystem is ext3, but the only slow application is dovecot (database / apache are pretty much fast as ever), so I ruled out the hard drive / filesystem as the main problem. Ram is ok, cpu usage pretty normal, no "standard" explanation why dovecot should break down like that.

If there's no easy fix I'll try to switch back to courier and test the speed with the "old one", just thought I'd ask first

Markus

It might be the amount of files of the directory.
ssh to the server and go to the home folder for that user. (/var/mail .../username/)
Once there type a ls and look how much it takes. Very often having 100000 files in a single directory degrades the performance when reading from there.
Maybe distributing the mail into separate folders would solve your problem in that case.