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Postfix Documentation
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Postfix Debugging Howto


Purpose of this document

This document describes how to debug parts of the Postfix mail system when things do not work according to expectation. The methods vary from making Postfix log a lot of detail, to running some daemon processes under control of a call tracer or debugger.

The text assumes that the Postfix main.cf and master.cf configuration files are stored in directory /etc/postfix. You can use the command "postconf config_directory" to find out the actual location of this directory on your machine.

Listed in order of increasing invasiveness, the debugging techniques are as follows:

Postfix Documentation
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