Browse free open source Anti-Spam software and projects below. Use the toggles on the left to filter open source Anti-Spam software by OS, license, language, programming language, and project status.

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  • 1
    Anti-Spam SMTP Proxy Server

    Anti-Spam SMTP Proxy Server

    Anti-Spam SMTP Proxy Server implements multiple spam filters

    The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Hidden-Markov-Model and/or Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click 'Files' to download the professional version 2.8.1 build 24261. A linux(ubuntu 20.04 LTS) and a freeBSD 12.2 based ready to run OVA of ASSP V2 are also available for download. NOTICE: V1 development has been stopped at the end of 2014 (1.10.1 build 16060). Possibly there will be done some bugfixing in future. Please upgrade to V2, which is and will be actively maintained.
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    Downloads: 44,065 This Week
    Last Update:
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  • 2
    ASSP Server Project
    The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click 'Browse all files' to download the professional version 2.4.3 build 14313. V1 development has been stopped in May 2014. Possibly there will be done some bugfixing until end of 2014. EOL of V1 is anounced for the 31 December 2014. Please upgrade to V2, which is and will be actively maintained.
    Downloads: 0 This Week
    Last Update:
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  • 3

    Advert Filter List

    Advertising domain filtering list

    This is a list of advertising domains that can be used with a proxy server to remove unwanted advert traffic from the network. This list is directly compatible with tinyproxy, but may also work with other proxy servers.
    Downloads: 0 This Week
    Last Update:
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