[155117] in North American Network Operators' Group
RE: Is Hotmail in the habit of ignoring MX records?
daemon@ATHENA.MIT.EDU (George Bonser)
Thu Jul 26 12:13:28 2012
From: George Bonser <gbonser@seven.com>
To: Ryan Rawdon <ryan@u13.net>, "nanog@nanog.org" <nanog@nanog.org>
Date: Thu, 26 Jul 2012 16:12:24 +0000
In-Reply-To: <6B5C60E0-7A00-4623-81DF-BB68A8B168E3@u13.net>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
> From: Ryan Rawdon=20
> Sent: Thursday, July 26, 2012 7:06 AM
> To: nanog@nanog.org
> Subject: Re: Is Hotmail in the habit of ignoring MX records?
> No solution to the issue was found in the various forks of that thread,
> however one individual afflicted by this issue (the OP) seems to have
> resolved his specific issue with Hotmail by fixing his MX records to be
> in stricter compliance with RFCs and best practices (removed a CNAME) -
> that said, per the quote above Hotmail should not have been falling
> back to the A records or any other RRs for the hostname.
I would say MX pointing to a CNAME instead of pointing to an A record is th=
e #1 cause of intermittent mail delivery problems I have seen. Some MTAs s=
eem to tolerate it, some don't.
G
