HOME Network and InternetProxy Server Tools Anti-Spam SMTP Proxy Server Download

The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, Bayesian, Greylisting and multiple filter methods. Click 'Browse all files' to download the professional version 2.2.1 build 12176. ALL V2 versions with a build number less than 12130 have a bug which make SSL/TLS unavailable if the Perl module IO::Socket::SSL 1.70 is installed. Don't upgrade the module to version 1.70 or upgrade to the latest assp version. Features: * Multiple Weighted DNSBLs * Multiple Weighted URIBLs * Greylisting * Weighted Regular Expression Filtering * Bayesian * Penalty Box * SenderBase * SSL/TLS * SPF/SRS * Attachment Blocking * ClamAV and FileScan * Blocking Reporting * LDAP support * Backscatter Detection * V2 - recipient replacement / GUI user access rights management * V2 - MIME charset conversion / DKIM check and signing * V2 - DB support for all hashes / level based open plugin support * V2 - transparent proxy support / BATV check and signing * V2 - Plugins: archive, full attachment check and replacement, OCR * V2 - damping (steal spammers time) * V2 - AUTH to relay host / POP3 collector * V2 - configuration value and file synchronization * V2 - Block Reports design could be customized * V2 - Razor2 and DCC support via Plugin * V2 - SNMP support (monitoring, configuring, controll-API) * V2 - user group import (file or LDAP or command based) * V2 - automatic crash analyzer Hidden Markov Model * V2 - IPv6 socket support * V2 - word stemming (several languages) for Bayesian analyzer * V2 - Perl module autoupdate via PPM or CPAN * V2 - Hidden Markov Model spam detection engine * V2 - full unicode supportRelease notes: New ReleaseTE The mail analyzer leads some times in to a stuck Worker or MainThread, if the analyzed mail content is tooTE long the analyze is now restricted to MaxBytes to prevent this.TE The regular expression optimization causes different content related problems.TE The structure of domain and user related regular expressions is internaly changed.TE Now the processing of the regular expressions takes much less time, because Perl needs no backtrackingTE the memory usage is the same like before. It is save to use the Regex.Optimizer modules with this release!TE If the regex optimizer modules are used, it was possible that 'strong' optimized regular expressionsTE (like localaddresses_flat) have lost there function, if the file size is very large.TE There is no known limit of the file size, where the regexes are still working well.TE For this reason, the 'strong' optimization is removed for all regular expressions and the 'simple'TE optimization is used instead. [ Anti-Spam SMTP Proxy Server full changelog ]

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