PTR records for IPv6

Jared Mauch jared at
Mon Sep 2 00:07:43 CEST 2013

I believe there is value. If you intend to send email etc, it's fair you have a PTR record. Most dynamic IP ranges in v6 will either have none or one generated on the fly. They aren't really intended to have mail coming out of them without going through a real server. Sorry for those of you running stuff at home, better spin up that data center vps which is static for your mail relay. 

Jared Mauch

> On Sep 1, 2013, at 5:30 PM, Brian E Carpenter <brian.e.carpenter at> wrote:
> So, is there any real operational value in this, or is it just
> a case of "we did it for v4 so it must be right for v6"?
>   Brian
> -------- Original Message --------
> Subject: [nznog] Orcon IPv6 rDNS delegation
> Date: Mon, 2 Sep 2013 02:08:47 +1200
> From: Jonathan Spence <jonathan.spence at>
> Reply-To: jonathan.spence at
> To: <nznog at>
> Hi everyone, Google have just started enforcing PTR records for IPv6
> addresses delivering to Gmail. Our IPv6 works great with Orcon but having
> serious issues getting delegation back to our nameservers setup.
> <irrelevant operational details omitted>

More information about the ipv6-ops mailing list