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 Freemium Postgrey Alternatives
In our list of best programs, we'll review some different alternatives to Postgrey. Let's see if your platform is supported by any of them.
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...
Postgrey Reviews
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