Anti-Spam SMTP Proxy

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Anti-Spam SMTP Proxy

Anti-Spam SMTP Proxy

Author:	[[Author::John Hanna]]
Developer:	[[Developer::Fritz Borgstedt in association with the ASSP community]]
Stable release	1.3.1 (04 May 2007)
Preview release	1.3.2 ({{{3}}})warning.png"1.3.2;{{{3}}}" cannot be used as a page name in this wiki.
OS:	Cross-platform
Genre:	Email spam filter
License:	GNU General Public License
Website:	[[Website::assp.sourceforge.net]]

The Anti-Spam SMTP Proxy (ASSP) server project is an Open Source platform-independent transparent SMTP proxy server that leverages numerous methodologies and technologies to both rigidly and adaptively identify e-mail spam. ASSP is easy to set up because it requires only minor changes to your MTA.

Foremost amongst ASSP's features are: Bayesian analysis, Penalty Box (PB) trapping, RBL (Real-time Black-hole Listing, aka DNSBL), URIBL (aka Uniform Resource Identifier Black Listing), multi-level SPF (aka Sender Policy Framework) validation and blocking, SRS (aka Sender Rewriting Scheme) fix-up, Session Delaying (aka Greylisting) and connection response delaying, sender validation and recipient validation, multi-level attachment blocking (based on block lists or allow lists), as well as multiple RFC validation mechanisms.

ASSP is a project on SourceForge.net.