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GNU sauce
Anti-spam server

Software Against Unsolicited Commercial Email is an SMTP frontend written to fight spam and promote good system configuration and administration. It sits between the Internet and your actual mail software. The program is extremely aggressive in checking incoming email and its sources; if it discovers any problems, it will not accept the mail. Mail from previously unknown sources is delayed to test for bait addresses or cancelled accounts. When mail is sent to a bait address its sources are blacklisted. as per the developer, the program delays mail from new sites and senders, and will bounce sites that are misconfigured, whether or not they are spam.

Related Projects



Verified by

Verified on


Verified by

Janet Casey

Verified on

2 January 2001

Leaders and contributors

Ian Jackson Maintainer

Resources and communication

AudienceResource typeURI
DeveloperVCS Repository Webview

Software prerequisites

Required to useTcl 8.1 or later
Required to useadns
Weak prerequisiteauthbind
Weak prerequisiteuserv
Weak prerequisiteLinux 2.2 ipchains firewalling

This entry (in part or in whole) was last reviewed on 30 July 2018.


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