What information is needed to troubleshoot a Postfix problem?

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Troubleshooting Postfix problems require an understanding of your network configuration and a definition of your goals. Below is a list of items and questions that are helpful when troubleshooting Postfix related issues.

Postfix Checklist:

What version of Postfix are you currently running? Use rpm -q postfix to show you.
A...

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What information is needed to troubleshoot a Postfix problem?

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