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

Alexander Neilson alexander at neilson.net.nz
Fri Oct 18 09:05:10 UTC 2013


See Below

Regards
Alexander

Alexander Neilson
Neilson Productions Limited

alexander at neilson.net.nz
021 329 681
022 456 2326

On 18/10/2013, at 9:46 PM, Doug <doug at hacks.perl.sh> wrote:

> Hello,
> 
> $ idig plus.google.com mx
> plus.google.com.    1200    IN    CNAME    plus-china.l.google.com.
> plus-china.l.google.com. 600    IN    MX    40 alt3.aspmx.l.google.com.
> plus-china.l.google.com. 600    IN    MX    50 alt4.aspmx.l.google.com.
> plus-china.l.google.com. 600    IN    MX    10 aspmx.l.google.com.
> plus-china.l.google.com. 600    IN    MX    20 alt1.aspmx.l.google.com.
> plus-china.l.google.com. 600    IN    MX    30 alt2.aspmx.l.google.com.
> 
> I never saw this type of MX.  Are they valid records?

;; QUESTION SECTION:
;neilson.net.nz.			IN	MX

;; ANSWER SECTION:
neilson.net.nz.		43200	IN	MX	20 alt1.aspmx.l.google.com.
neilson.net.nz.		43200	IN	MX	10 aspmx.l.google.com.

These are the MX records for my domain.

It seems valid to me, or if not valid then it seems to work



> 
> Thanks.
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