[103898] in North American Network Operators' Group
Bell Canada/Bellnexxia ignoring MX records, anybody else?
daemon@ATHENA.MIT.EDU (Mark Jeftovic)
Thu Apr 17 11:55:07 2008
Date: Thu, 17 Apr 2008 11:50:43 -0400
From: Mark Jeftovic <markjr@easydns.com>
To: nanog@nanog.org
Errors-To: owner-nanog@merit.edu
We've been working on this for about a week, we are in touch with some
network folks at Bell but I'd like to see if this is something a bit
more widespread than domains hosted on our nameservers. (We have had a
report of similar behavior from another DNS host)
At any rate, what it looks like to us is that customers using Bell SMB
outbound mail servers, possibly other outbound mail servers on Bell
(Nexxia, Sympatico?) to destination domains whose NS are hosted on our
nameservers seem to have the MX record *ignored* and the mail is
delivered to the A record for the domain.
We also suspect that it happens when the MX record points at a host back
inside the Bell network/address space.
Is anybody else noticing this?
-mark
--
Mark Jeftovic <markjr@easydns.com>
Founder / President, easyDNS Technologies Inc.
Company Website: http://www.easyDNS.com
I ramble pointlessly from my blog: http://www.PrivateWorld.com
