Zentyal Forum, Linux Small Business Server

Zentyal Server => Other modules => Topic started by: sduncan001 on May 09, 2018, 04:10:23 pm

Title: Logging SMTP connections in Firewall logs
Post by: sduncan001 on May 09, 2018, 04:10:23 pm

I am trying to see connections made for SMTP in the firewall logs. I have enabled the firewall log sent myself an email from external account but there are no entries in the logs for port 25 or the sending mail server.

Title: Re: Logging SMTP connections in Firewall logs
Post by: scottdr on May 29, 2018, 07:05:24 pm

Firewall logs normally log dropped/rejected packets as a standard. You should see e-mails by locking at the Mail logs (assuming it is enabled), or you can monitor /var/log/mail.log to see connections made to your mail server. mail.log will show all connections to ports 25, 587, as well as IMAP and POP connections.