On Dec 18, 2009, at 11:08 AM, Götz Reinicke - IT-Koordinator wrote: >>> We use the original RH dovecot-1.0.7, mbox-format and mailboxes up to 4 >>> GB ... (historicaly grown ...) >> >> Have you set mbox_very_dirty_syncs=yes? > > grep mbox_very_dirty_syncs /etc/dovecot.conf > #mbox_very_dirty_syncs = no > > so, I think "no" is the default. > > Setting this to "yes" is may be faster?
Are you using Dovecot deliver? If not, setting this to "yes" will help a lot. >> Anything in logs? Anyway my guess is that it spends all the time reading >> those 4 GB mailboxes.. >> > > With that guess, you are not the only one ... beside my guts ... ;-) > > If I do have the time, I'd like to switch over to e.g. maildir Yeah, maildir would be a good idea.