On 9/9/2011 3:15 AM, Nicolas Thierry-Mieg wrote: > John Hinton wrote: >> /var/spool/postfix/private/auth >> >> It seems this must be owned by postfix but it was owned by root. >> >> So, can somebody check to see if this is there in a CentOS 6 Postfix >> install where Amavis is not installed? And if so, what are the default >> permissions? > maybe try > rpm -qf /var/spool/postfix/private/auth > to see if it belongs to an rpm. > You could then rpm -V that package if it exists. > OK... I found it. In Dovecot master.conf, I enabled smtp-auth. Under that, it seems you must set the user to postfix or each time you restart dovecot the auth file is recreated and is owned by root... resulting in the failure. I looked for the file earlier and it was not there. It seems to have appeared due to enabling smtp-auth, but I did make other edits before restarting the service. Inside of service auth I have the following: # Postfix smtp-auth unix_listener /var/spool/postfix/private/auth { mode = 0666 user = postfix } I am considering adding group = postfix as well as the file is now group root. Thanks, John Hinton