[AusNOG] PTR Records

[David Beveridge]

Thanks for your responses.

And for the record, yes, the EHLO header was mycompany.com.au and it
does have a normal A record.

On Tue, Nov 18, 2014 at 11:59 AM, Mark ZZZ Smith
<markzzzsmith at yahoo.com.au> wrote:
>
> >________________________________
> > 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 did ask them about this and they were unable to answer it.

>
> >
> >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.

I am now writing a formal letter of complaint, as outlined in the
complaint handling policy.

>
> (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.)
>