[120344] in North American Network Operators' Group
Re: DNS question, null MX records
daemon@ATHENA.MIT.EDU (Paul Vixie)
Wed Dec 16 19:48:47 2009
To: nanog@merit.edu
From: Paul Vixie <vixie@isc.org>
Date: Thu, 17 Dec 2009 00:48:00 +0000
In-Reply-To: <4B297E4A.4070302@mail-abuse.org> (Douglas Otis's message of
"Wed\, 16 Dec 2009 16\:41\:46 -0800")
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Douglas Otis <dotis@mail-abuse.org> writes:
> If MX TEST-NET became common, legitimate email handlers unable to
> validate messages prior to acceptance might find their server
> resource constrained when bouncing a large amount of spam as well.
none of this will block spam. spammers do not follow RFC 974 today
(since i see a lot of them come to my A RR rather than an MX RR, or
in the wrong order). any well known pattern that says "don't try
to deliver e-mail here" will only be honoured by friend people who
don't want us to get e-mail we don't want to get.
--
Paul Vixie
KI6YSY
