SoCS hosts a mail server to handle incoming and outgoing mail for the school of computer science. It is hosted at mail.socs.uoguelph.ca which is an alias for owlery.socs.uoguelph.ca. The system primarily handles mail for @socs.uoguelph.ca addresses, but will also process @cis.uoguelph.ca for legacy reasons, and @mail.socs.uoguelph.ca.

The SoCS mail server is configured to use mail.uoguelph.ca as a relay. This CCS hosted server listens with an unauthenticated port 25 SMTP connection for any mail sent from on campus. This ensures that in the event of our server being compromised, CCS IT Security can stop the outbound flow of mail.

Incoming mail sent from a user who is authenticated to mail.socs.uoguelph.ca will be processed automatically. Any mail that come from outside the SoCS mail server is first routed through CCS mail appliance. This is through the MX records for socs.uoguelph.ca which are configured in our LDAP/DNS system. Once mail reaches here, it is processed to ensure no spam/malware and is then forwarded to mail.socs.uoguelph.ca for delivery.

Postfix is a mail transfer agent and is used for processing and delivering mail. Specific configuration is located in /etc/postfix, but the general setup is a system that allows TODO stuff