Apps similar to bogofilter include SpamAssassin, which is free and open source. Other options are EuropeanMX, Altospam, SmartInbox and Anti-Spam SMTP Proxy Server. In total there are five Anti-Spam Tools like bogofilter for Linux, the web, Mac, self-hosting and Windows.
Use this program to "Unspam" your mailbox(es). The program can be integrated with the mail server to automatically filter all mail for a site. It can also be run by individual users on their own mailbox and integrates with several mail programs.
EuropeanMX blocks incoming spam and virus emails before they are reaching your network. With our outgoing filter you can secure your server's reputation. And last but not least we are offering encrypted cloud storage to archive all your emails.
Germany
EU
ALTOSPAM is an integrated SaaS software protecting your email from spams, viruses, scams and phishing. It allows companies owning at least one domain name to secure its email servers. ALTOSPAM combines 16 anti-spams technologies, 6 anti-viruses as well as other security services...
FranceEU
I’m personally getting a lot of Junk emails, one of the reasons is having a few LLC companies. A lot of other companies are trying to fix some issues (that don’t exist) or offer some services (that I don’t need).
United States
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...
