[159444] in North American Network Operators' Group
Re: [SHAME] Spam Rats
daemon@ATHENA.MIT.EDU (John Levine)
Thu Jan 10 15:58:00 2013
Date: 10 Jan 2013 20:57:25 -0000
From: "John Levine" <johnl@iecc.com>
To: nanog@nanog.org
In-Reply-To: <20130110074418.GF7097@besserwisser.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
>*.4.4.3.0.5.a.0.0.8.b.d.0.1.0.0.2.ip6.arpa. PTR a.node.on.vlan344.namn.se.
>
>...will work just fine, for instance.
Since there is no AAAA record for a.node.on.vlan344.namn.se., this
won't work fine in any rDNS check I'm aware of.
You are aware that useful rDNS has to have matching forward DNs, right?