Numbers on mx records
Barry Margolin
barmar at alum.mit.edu
Sun Oct 16 05:02:50 UTC 2005
In article <dirt2f$i44$1 at sf1.isc.org>,
Andy Pieters <x_terminat_or_3 at yahoo.fr> 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'm surprised. Most sites I look at use multiples of 10, often 10, 20,
30.
>
> 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?
No, the numbers don't mean anything by themselves. All that matters is
the order.
--
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
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