Postgrey alternatives

Postgrey is an open-source app for Linux and Self-Hosted. It is free to use. Developed by David Schweikert.

Alternatives

• Mailwasher
• SpamAssassin
• SpamSieve
• MailRoute
• Spam Reader
• EuropeanMX
• xTerminator
• Klar
• Anti-Spam SMTP Proxy Server
• SmartInbox