Date: 2007oct29 OS: Linux Q. Postfix: get Postfix's copious logging in a separate file A. Yes, first you instruct Postfix to use an alternate Syslog facility. Then direct that facility to a new file. In /etc/postfix/main.cf set:

syslog_facility = local0

In /etc/syslog.conf add "local0.none" to /var/log/messages to stop local0 messages going there:

*.info;mail.none;authpriv.none;auth.none;cron.none;local0.none /var/log/messages

Also in /etc/rsyslog.conf add this line: (Or maybe /etc/syslog depending on your system)

local0.* -/var/log/postfix

Finally, restart postfix and syslog and check /var/log/postfix