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Postgrey

Postgrey is a Postfix policy server implementing greylisting. When a request for delivery of a mail is received by Postfix via SMTP, the triplet client_ip / sender / recipient is built. If it is the first time that this triplet is seen, or if the triplet was first seen less than 5 minutes, then the mail gets rejected with a temporary error. Hopefully spammers or viruses will not try again later, as it is however required per RFC.

content/en_us/dev_packaging_clearos_6.x_postgrey.txt · Last modified: 2014/12/23 16:07 by dloper

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