Installing MailScanner 5.3 with Postfix on Ubuntu 20.04 LTS

This is an installation guide for installing MailScanner 5.3 with Postfix on Ubuntu 20.04 LTS. The situation we want to create is first have an incoming mail scanned by MailScanner and after it is found ok to be delivered to your Exchange or Zimbra mail server.


This document is a step by step guide, so you might do some steps differently because you prefer other options or packages.

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