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From: Greg Lehey <grog@lemis.de>
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Subject: Re: local delivery problems with exim
In-Reply-To: <l03010600aec1193203f5@[194.159.145.12]> from Philip Crewdson at "Nov 26, 96 10:04:43 pm"
To: philip@state51.co.uk (Philip Crewdson)
Date: Wed, 27 Nov 1996 16:17:01 +0100 (MET)
Cc: questions@FreeBSD.org
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Philip Crewdson writes:
> Hi,
>
> I'm trying to run exim 1.58, which I got from the Cambridge source. It's
> working fine, except it won't deliver locally - it doesn't seem to be able
> to adopt the uid of local users. Anyone had/solved this problem?

I don't know exim, but the problem looks familiar: you need to set
your program setuid root:

  # chown root exim
  # chown 4755 exim

The '4' is the suid bit.

If this doesn't work, let me know.  setuid(2) and setgid(2) have some
surprises in store.

Greg