[155109] in North American Network Operators' Group
Re: Is Hotmail in the habit of ignoring MX records?
daemon@ATHENA.MIT.EDU (Suresh Ramasubramanian)
Thu Jul 26 03:22:29 2012
In-Reply-To: <20120726071441.GA11199@metron.com>
Date: Thu, 26 Jul 2012 12:51:49 +0530
From: Suresh Ramasubramanian <ops.lists@gmail.com>
To: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
If the MX records are not responsive / timing out, they might be falling
back to the A record.
On Thu, Jul 26, 2012 at 12:44 PM, Lou Katz <lou@metron.com> wrote:
> One of my users has reported incoming mail failures, which I finally
> tracked down. It turned out that Hotmail has seen fit to send the mail
> to his domain's A record machine, despite the fact that he has valid MX
> records.
>
> The A record points to my webserver, which does not normally accept mail
> for anyone. The mail server MX records are to an entirely different
> machine.
>
--
Suresh Ramasubramanian (ops.lists@gmail.com)
