[dns-operations] Can MX be working with CNAME?

Thomas Mieslinger miesi at pc-h.de
Mon Oct 21 13:41:46 UTC 2013

Hi Tony,

On 21.10.13 13:37, Tony Finch wrote:
> In practice, this depends a lot in the RR in question. NS pointing to
> CNAME is not going to work. MX pointing to CNAME probably will work.

I can assure you that there are many MTA implementations which stricly 
check that MXs point to A/AAAA Records.

Please do what RFCs say and use Address Records.


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