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Subject: Re: local delivery issues
From: Wietse Venema (wietseporcupine.org)
Date: Sat Dec 09 2000 - 18:22:35 CST

David Schweikert:
> This is exactly what is happening to us when the concurrency limit for
> local deliveries is reached.
>
> Look for hanging 'local' processes (see my previous posts about local
> delivery problems and local_destination_concurrency_limit)...

I had a look at this problem and have found out what is wrong.

Due to a change of internals in Postfix snapshots (not in release
19991231, any patchlevel), the local_destination_concurrency_limit
parameter no longer works as a per-user limit, but limits the
concurrency for all local delivery.

So, it is best to set local_destination_concurrency_limit to zero
in your main.cf files. The master.cf process limit will prevent
Postfix from driving your machine into the ground.

This will be fixed in this weekend's snapshot.

        Wietse