[170288] in North American Network Operators' Group
Re: why IPv6 isn't ready for prime time, SMTP edition
daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Tue Mar 25 23:13:32 2014
To: Rob McEwen <rob@invaluement.com>
In-Reply-To: Your message of "Tue, 25 Mar 2014 22:51:11 -0400."
<5332409F.1060109@invaluement.com>
From: Valdis.Kletnieks@vt.edu
Date: Tue, 25 Mar 2014 23:09:02 -0400
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
--==_Exmh_1395803342_2017P
Content-Type: text/plain; charset=us-ascii
On Tue, 25 Mar 2014 22:51:11 -0400, Rob McEwen said:
> On 3/25/2014 10:25 PM, Brielle Bruns wrote:
> >
> > Like I said in a previous response, if you are going to make rdns a
> > requirement, why not make SPF and DKIM mandatory as well?
>
> many ISPs ALREADY require rDNS. So making that standard official for
> IPv6 is isn't asking for much! It is a NATURAL progression.
There's still a lot of ancient mail servers out there in v4 land, that were
set up before PTRs were pseudo-required by most places, so we end up cutting
them some slack under a grandfather clause.
There's probably less than a dozen ASNs that have mailservers that speak
IPv6 that were deployed before requring PTRs became common, so they have
much less of an excuse not to do so....
--==_Exmh_1395803342_2017P
Content-Type: application/pgp-signature
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
Comment: Exmh version 2.5 07/13/2001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=ORGw
-----END PGP SIGNATURE-----
--==_Exmh_1395803342_2017P--
