  |
SpamAssassin - http://spamassassin.apache.org/
Open Source mail filter, written in Perl, to identify spam using a wide range of heuristic tests on mail headers and body text. Free software. Can be used as a standalone mail filter, or from procmail. Site includes download, news, FAQ, and documentation. |
  |
SpamAssassin Wiki - http://wiki.apache.org/spamassassin/
User contributed documentation, testimonials, tricks and tips for the mail filtering software. |
  |
SpamAssassin Bugzilla - http://issues.apache.org/SpamAssassin/
Bug-tracking system for the SpamAssassin mail filtering project. |
  |
Wikipedia: SpamAssassin - http://en.wikipedia.org/wiki/SpamAssassin
Encyclopedia article about the mail filtering software, including history and details of the various techniques employed. |
  |
SpamAssassin Rules Emporium - http://www.rulesemporium.com/
A community-maintained collection of custom rules for SpamAssassin. |