Anti-Spam SMTP Proxy Server
Screenshots
Description
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 12137.
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 support
User Ratings
User Reviews
-
Best open source, easy to implement anti-spam filtering software. Awesome project!
-
Seriously awesome spam protection! Easy to install and get up and running. There are so many options that it takes a bit of digging around to get the hang of what needs to be adjusted, but it's well worth the effort.
-
ASSP default settings are working well but the configuration can be difficult .But it's well worth...thanks
-
Cool..... Thanks for Developer!
-
Nice but a bit complected
-
Powerful, effective software. Lots of parameters to configure but the default settings are very sane. End users like being able to forward their own spam to the system and I don't have to deal with it!