Re: DNS question, null MX records

[Tony Finch <dot () dotat at>]

On Wed, 16 Dec 2009, Mark Andrews wrote:
> Douglas Otis wrote:
> > One might instead consider using:
> >
> > example.com.        IN MX 0 192.0.2.0
> >                     IN MX 10 192.0.2.1
> >                     ...
> >                     IN MX 90 192.0.2.9
>
> Which will expand to:
>
> example.com.  IN MX 0 192.0.2.0.example.com.
>               IN MX 10 192.0.2.1.example.com.
>               ....
>               IN MX 90 192.0.2.9.example.com.
>
> MX records DO NOT take IP addresses.

Or if he puts in the trailing dot it'll still cause the root server
traffic he was trying to avoid.

Tony.
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