Hmmm
I ran this on one of my domains and got the following warning:
mail.virtualdomain.com claims to be non-existent host
webserver.realdomain.com:
220 webserver.realdomain.com ESMTP Sendmail 8.13.1/8.13.1; Tue, 15 Aug
2006 16:35:26 -0400
strange
L
----- Original Message -----
From: Taco Scargo <taco (at mark) scargo.nl>
Date: Tuesday, August 15, 2006 2:01 pm
Subject: [coba-e:06358] Re: AW: Re: AW: Re: Conflict between CNAME
MX entry
To: coba-e (at mark) bluequartz.org
> First of all: always run your domain through www.dnsreport.com
> dnsreport will report any errors it finds.