nanog mailing list archives

Re: Is Hotmail in the habit of ignoring MX records?


From: Tony Finch <dot () dotat at>
Date: Sat, 28 Jul 2012 00:16:48 +0100

That would be a seriously broken violation of the SMTP specification.

Tony.
--
f.anthony.n.finch  <dot () dotat at>  http://dotat.at/

On 26 Jul 2012, at 08:21, Suresh Ramasubramanian <ops.lists () gmail com> wrote:

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)


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