On 18.1.2011, at 11.41, Nick Lunt wrote:
> How about putting the something similar to the following in
> /etc/logrotate.conf (on redhat/centos)
>
> /var/log/dovecot.log {
> weekly
> minsize 1M
> create 0664 root postfix
> rotate 4
> }
Be sure to send a SIGUSR1 signal to dovecot process too so that it reopens the logs. (With v2.0 you can use doveadm log reopen.)