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Date: Sat, 22 Sep 2007 13:22:20 +0100
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Subject: Re: Why is sendmail in the core of FreeBSD?
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On Sat, 22 Sep 2007 13:26:40 +0200
Erik Trulsson <ertr1013@student.uu.se> wrote:

> If the default MTA were changed many existing users would be quite
> upset when their working configurations suddenly stopped working - so
> one should not change the default MTA without a very good reason.
> 

Although NetBSD did it. From what I've heard they did it progressively,
keeping both in the base for a period.