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Postfix Documentation
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Postfix Backscatter Howto


Overview

This document describes features that require Postfix version 2.0 or later.

Topics covered in this document:

  • What is backscatter mail?
  • How do I block backscatter mail to random recipient addresses?
  • How do I block backscatter mail to real recipient addresses?
    • Blocking backscatter mail with forged HELO information
    • Blocking backscatter mail with forged sender information
    • Blocking backscatter mail with other forged information
    • Blocking backscatter mail from virus scanners
Postfix Documentation
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