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grey listing. Grey listing is a spam filtering technique, which uses a behavior trick: spammers never resend a message when they get a temporary error, whereas real MTA do. The idea is to refuse any mail on first attempt, and accept it after some time has elapsed. PR: ports/67252 Submitted by: Cyril Guibourg <aragorn+ports@teaser.fr>
11 lines
443 B
Text
11 lines
443 B
Text
This is a port of Emmanuel Dreyfus' milter-greylist.
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Grey listing is a wonderful spam filtering technique, which uses a behavior
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trick: spammers never resend a message when they get a temporary error,
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whereas real MTA do. The idea is to refuse any mail on first attempt, and
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accept it after some time has elapsed.
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milter-greylist is a stand-alone milter written in C that implement grey
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listing.
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WWW: http://hcpnet.free.fr/milter-greylist/
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