Subject: Re: sendmail inappropriately tries to externally relay local mail
To: None <netbsd-users@NetBSD.org>
From: Matthias Scheler <email@example.com>
Date: 09/04/2005 08:39:54
In article <firstname.lastname@example.org>,
Christian Hattemer <email@example.com> writes:
> Everything was fine, until lately the name "localhost.myisp.de" appeared in
> DNS. Since that sendmail tries to relay local mail (e.g. reports from
> /etc/daily) via "localhost.myisp.de".
That's really a bug in their DNS. "localhost.t-link.de" resolves to
an IP address != 127.0.0.1 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 127.0.0.1
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 "netbsd.org" which has the correct "localhost" entry.
Matthias Scheler http://scheler.de/~matthias/