[AusNOG] PTR Records

[Mark ZZZ Smith]

>________________________________
> From: David Beveridge <dave at bevhost.com>
>To: "ausnog at lists.ausnog.net" <ausnog at lists.ausnog.net> 
>Sent: Tuesday, 18 November 2014, 12:25
>Subject: [AusNOG] PTR Records
> 
>
>
>Can anyone point me to any RFC which says that there are restrictions on the name a PTR can point to.

>

I'd be challenging them with that question.
>
>I have been told by a certain ISP that I cannot have a PTR pointing to mycompany.com.au as it is NON-standard and which cannot and should not be done.  They insist on setting the PTR to mail.mycompany.com.au and refuse to do as I ask.

>

I'd see this as a sign of incompetence, and look to reward that with finding a different supplier.

(This reminded me of an email address which was in .arpa, meaning that somebody had put an MX record in that TLD. I doubt there is any policing of PTRs only .arpa, and I don't think there should be. DNS should store and reply with any RR for any domain, it is only convention that e.g., means .arpa usually only contains PTRs.)

>
>I have never heard of any such thing.
>
>
>dave.
>
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