Subject: Re: sendmail inappropriately tries to externally relay local mail
To: None <>
From: Matthias Scheler <>
List: netbsd-users
Date: 09/04/2005 08:39:54
In article <>,
	Christian Hattemer <> writes:
> Everything was fine, until lately the name "" appeared in
> DNS. Since that sendmail tries to relay local mail (e.g. reports from
> /etc/daily) via "".

That's really a bug in their DNS. "" resolves to
an IP address != which is very wrong. From RFC 1912
(Common DNS Operational and Configuration Errors):

	The "localhost" address is a "special" address which always refers to
	The local host.  It should contain the following line:

           localhost.      IN      A

You should ask your ISP to fix their setup or work arround it by not
chaning your "/etc/resolv.conf" not use their domain. You can e.g.
use "" which has the correct "localhost" entry.

	Kind regards

Matthias Scheler