Numbers on mx records
base60
nobody at whitehouse.com
Sat Oct 15 22:38:21 UTC 2005
Andy Pieters wrote:
> HI list
> Please forgive my ignorance but I used zoneedit to handle my dns (thanks to
> this list) and now when I do a
>
> dig mx vlaamse-kern.com
>
> it shows
>
> 0 mail.vlaamse-kern.com
> 20 mta.pro.numericable.fr
>
> Doing the same for other sites shows mx records starting with number 1
>
> I know that these numbers determine the order, and that the higher the number
> the lower the priority(?) but does 0 rather then 1 mean absolute priority?
A zero and a twenty means the same thing as a 10 and a 20: email goes to
the lower number, if possible.
The only thing that matters is the relative positions of the numbers.
The absolute value is irrelevant.
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