[dns-operations] MX CNAMEs

Doug Barton dougb at dougbarton.us
Fri Dec 26 17:34:26 UTC 2014

On 12/25/14 10:17 PM, 风河 wrote:
> I was thinking MX should not be a CNAME record.
> But these two are broken the rules, and they seem work just fine?


Short version, while it may work sometimes, the times it fails are very 
hard to detect.


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