MailChannels eliminates false positives by using a new technique using subdomains in E-mail addresses. [Windows]
Advanced spam control using many different tests with a variety of possible actions to take on spam. [Windows]
MailShield filters e-mail before it gets to the mail server. Customizable. Free trial available. [Unix,Windows]
The Active SMTP Appliance is a hardware appliance that dynamically filters and quarantines junk e-mail before it gets to the mail server. [Hardware]
Patched version of Obtuse SMTPD that provides content filtering and tar pitting. [Unix]
List of spam filtering programs and scripts for mail servers.
Prevents SMTP hijacking (outgoing spam) of the respective MX SMTP Server from anonymous Dial-In Users. [Unix]
Free open-source software for users of the free Windows Hamster local news and mail server, to filter out spam using any of the publicly available Realtime Block Lists (RBL). [Windows]
MailStripper is an SMTP-level spam filter with antivirus capability for Linux, FreeBSD and Solaris. [Unix]
Perl based spam and anti-virus filters. The content of individual messages and their attachments is analyzed across several broad categories. The program works with the Mercury32 email server. [Windows]
Computers /
Internet /
Abuse /
Spam
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