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Apache SpamAssassin

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

Securityanti-spamemail-filteringopen-sourcebayesian-filteringperlsysadminemail-security
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.

Problem

Unwanted bulk email (spam) clogs inboxes and poses security risks for organizations relying on email infrastructure.

For

System administrators managing email servers

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.

Business model

open-source

Status

launched

Company

Apache Software Foundation

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