Is Hotmail in the habit of ignoring MX records?
George Bonser
gbonser at seven.com
Thu Jul 26 16:12:24 UTC 2012
> From: Ryan Rawdon
> Sent: Thursday, July 26, 2012 7:06 AM
> To: nanog at 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 the #1 cause of intermittent mail delivery problems I have seen. Some MTAs seem to tolerate it, some don't.
G
More information about the NANOG
mailing list