Postgrey Alternatives
Postgrey
Postgrey is a Postfix policy server implementing greylisting developed by David Schweikert.
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 ago, 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.
Best Postgrey Alternatives for Windows
Looking for a program that is like Postgrey? We have our top picks here. If you need another program that has some of the features of Postgrey on your device, read what we recommend in this post.
Mailwasher
FreemiumWindowsLinuxOver 8 million people use MailWasher as their spam filter Introducing MailWasher, the leader in spam filter software, and the easiest way to check and manage your...
BullGuard Spamfilter
FreeWindowsMicrosoft Office OutlookThunderbirdMost people find spam e-mails the biggest nuisance on the Internet. Today, spam e-mails account for over 80% of all e-mail traffic and their volumes increase daily....
Happy Moose
CommercialMacWindowsLinuxWebHappy Moose is a super-efficient cloud anti-SPAM solution for organizations. It stops up to 99.7% of SPAM, and no false positives. It means that you don't need to...
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