Anti-Spam Tools

Pyzor – spam-blocking networked system

Pyzor is an implementation of a spam-blocking networked system that use spam signatures to identify them.

Using Pyzor client a short digest is generated that is likely to uniquely identify the email message.

This is free and open source software.

The generated digest is sent to a Pyzor server to:

  • check the number of times it has been reported as spam or whitelisted as not-spam;
  • report the message as spam;
  • whitelist the message as not-spam.

Website: github.com/SpamExperts/pyzor
Support: Documentation
Developer: SpamExperts
License: GNU General Public License v2.0

Pyzor is written in Python. Learn Python with our recommended free books and free tutorials.


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ASSPPerl based transparent SMTP proxy server
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MailScannerVirus scanner and spam detector
PyzorSpam-blocking networked system
Scrollout F1Highly configurable email gateway for multiple domains and servers

Read our verdict in the software roundup.


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