Multiple A and PTR and the "main" ones?

Reindl Harald h.reindl at
Fri Sep 11 12:50:07 UTC 2015

Am 11.09.2015 um 14:42 schrieb Marek Kozlowski:
> On 09/11/2015 02:36 PM, Reindl Harald wrote:
>> STAY ON LIST - the last time i had enough of repeating that a
>> answer on a public ML is not a invitation for private support i got
>> moderated...
> Oups! Sorry! :-( Sorry! Sorry!
> I'm sending this with the whole "history" of our conversation.
>> it is my opinion backed by dealing with DNS and email for many
>> years facing all problems left and right we never had because the
>> strict policy here that one IP has only one PTR
>> what "official bad practice" do you need when you can see the
>> problems otherwise would not be possible at your own?
> In the sense: "`best current practice' says something opposite".
> BTW: Are we talking on multiple PTRs for mail servers only or multiple
> PTRs in general?

well, in fact mailservers because for other services PTR's are not that 
important or verified at all - if they are not verified why bother about it?

but what would you gain by having multiple PTR records at all for 
whatever server? that's in fact the only relevant question

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