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Date:      Tue, 05 Mar 96 05:02:55 EST
From:      sreid@edmbbs.iceonline.com
To:        isp@freebsd.org
Subject:   named/sendmail problem: "MX points back..."
Message-ID:  <9603050502.D8391Tc@edmbbs.iceonline.com>

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This is not a FreeBSD-specific question, but other than that I think I
have the right mailing list...

I'm trying to configure DNS for our site, which will soon be connected
to the internet. I have named.hosts set up so that access to edmnet.com
connects to kirk.edmnet.com. I've set this up as shown in RFC-1912, with
the two 'A' records pointing to the same IP address. I also have
kirk.edmnet.com set up as primary MX for the domain.

The problem is, when I try to send mail to user@edmnet.com, sendmail
complains that "MX record for edmnet.com. points back to kirk.edmnet.com"
and the mail bounces.

I don't know if this is a problem with DNS or sendmail. I can't see
anything wrong with the named.hosts file, and the sendmail.cf file is
the default that comes with FreeBSD. RFC-1912 mentions a "Cw" flag for
sendmail, but I can't find enough documentation on this option to
determine exactly what it does, and if/how it can fix the problem.

This is a fairly basic setup, but I can't find any info on this
problem... I'd appreciate any help I can get.



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