[120082] in North American Network Operators' Group
Re: Arrogant RBL list maintainers
daemon@ATHENA.MIT.EDU (William Herrin)
Wed Dec 9 11:58:21 2009
In-Reply-To: <Pine.LNX.4.58.0912091506270.30843@scott.cb3rob.net>
Date: Wed, 9 Dec 2009 11:57:29 -0500
From: William Herrin <herrin-nanog@dirtside.com>
To: Sven Olaf Kamphuis <sven@cyberbunker.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Wed, Dec 9, 2009 at 10:18 AM, Sven Olaf Kamphuis
<sven@cyberbunker.com> wrote:
> We've noticed that Trend Micro "mail-abuse.com" just "assumes" ips are
> dynamic by default,
>
> because they just assume that working, rfc compliant, reverse dns that
> just-so-happens to be automatically generated would indicate dynamic ip
> space.
Sven,
Which is it? By default or because it looks automatically generated?
By default would seem to be a problem. Automatically generated, not so much.
If you haven't made the effort to set up and secure a mail server then
you shouldn't be talking smtp to the hosts mail-abuse.com is used to
protect. If you haven't bothered to set the reverse DNS to match your
server's name then you haven't made the effort, at least not with a
modicum of competence.
Regards,
Bill Herrin
--
William D. Herrin ................ herrin@dirtside.com bill@herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004
