Many computers at Concordia University run the mail transfer agent sendmail.

We try to reduce the amount of spam received by our users, and try to completely eliminate spam relayed through our site to other sites, by using the new sendmail check_* rules. In designing our rulesets, we got plenty of inspiration from the following sites:

• Sendmail anti-spam, official
• Using check_* in sendmail 8.8
• Fight Spam on the Internet!
• Sendmail rulesets for antispam and antirelay, and block list, from WSRCC

If you like, you can also take a look at our antispam rulesets. There's no warranty, and you get what you pay for. :-)

Our rules have been tested for local mail submission in conjunction with the following user agents:

• Pine
• Eudora
• Berkeley mail (both NetBSD and Digital Unix versions)
• MH
• nmh
• elm
• bulk_mailer
• minimailer (a home-grown minimal mailer for cgi scripts)

We generate statistics on rejected mail using a perl script based on smreject by Ted George. If you like, you can also take a look at our modified version of smreject.

Finally, we strongly recommend the site maintained by the MAPS (Mail Abuse Protection System) Project.

---

Copyright, © 2003, Concordia University, Instructional and Information Technology Services (IITS). Author: Anne Bennett Credits: (none) Maintained by: postmaster@concordia.ca Last update: 1998/09/10 -- Dana Echtner