On Wed, 2011-04-06 at 19:23 +0300, Tolga wrote: > lookup: user=bilgi file=/etc/dovecot/passwd > Apr 06 16:20:54 auth(default): Info: passwd-file(bilgi,193.255.135.1): > unknown user As it says, there is no such user as "bilgi" in /etc/dovecot/passwd.