Troubleshooting - Postfix Empty Mail Log


Few days back I faced a problem in getting e-mail log from /var/log/mail.log. I found the mail.log file is empty and not showing any email log. After that I analyzed the issue and found that mail.log file has the permission like below:

-rw-r-----  1 root    adm     0K Dec 12 00:15 mail.log

I immediately changed the ownership using below command and restarted rsyslog, postfix service.
#chown syslog:adm /var/log/mail.log
#service rsyslog restart
#service postfix restart

Then, after executing the command “tail –f /var/log/mail.log”, I found the e-mail log showing properly.

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