Apache SpamAssassin

spamassassin.apache.org

The #1 Open Source anti-spam platform for classifying and blocking email spam

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Apache SpamAssassin screenshot
/ About /

Apache SpamAssassin is an open-source anti-spam platform designed for system administrators to filter and block unsolicited bulk email. It employs a robust scoring framework combining heuristic analysis, Bayesian filtering, DNS blocklists, and collaborative filtering databases to evaluate email headers and body text. It is a project of the Apache Software Foundation and is widely used in server-side email filtering deployments.

/ How it works /

SpamAssassin scores incoming emails using a combination of text analysis, Bayesian filtering, DNS blocklists, and plug-in rules to classify and block spam.

/ Who it's for /

System administrators managing email servers

/ More info /

Background.

Status
launched
Business model
open-source
Company
Apache Software Foundation
/ Discovered patterns /

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