From: Wietse Venema (wietseporcupine.org)
Date: Fri Dec 01 2006 - 14:41:03 CST

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Patrick - South Valley Internet:
> Hi Wietse,
>
> What should I be looking for in the logs?

You DO NOT use grep.

When mail is not delivered, you start with the machine that originates
the mail, and you LOOK AT EVERY LOGFILE RECORD around the time that
the mail was posted.

The logfile shows that either the mail was delivered to the next
machine, or it was not.

If the mail was not delivered to the next machine, the logs show
why. Fix that problem.

If the mail was delivered to the next machine, you repeat the steps
above there, and so on.

        Wietse

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