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The #1 Enterprise Open-Source Spam Filter


Welcome

Welcome to the home page for the open-source Apache SpamAssassin Project.

Apache SpamAssassin is the #1 Open Source anti-spam platform giving system administrators a filter to classify email and block spam (unsolicited bulk email).

It uses a robust scoring framework and plug-ins to integrate a wide range of advanced heuristic and statistical analysis tests on email headers and body text including text analysis, Bayesian filtering, DNS blocklists, and collaborative filtering databases.

Apache SpamAssassin is a project of the Apache Software Foundation (ASF).

Latest News

2018-09-16: SpamAssassin 3.4.2 has been released! This release contains numerous tweaks and bug fixes over the past three and 1/2 years including:

News Archive page. Atom feed

Features




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