[82216] in North American Network Operators' Group
Re: OT? /dev/null 5.1.1 email
daemon@ATHENA.MIT.EDU (Piotr KUCHARSKI)
Fri Jul 8 20:32:16 2005
Date: Sat, 9 Jul 2005 02:30:32 +0200
From: Piotr KUCHARSKI <chopin@sgh.waw.pl>
To: Valdis.Kletnieks@vt.edu
Cc: Patrick Muldoon <doon@inoc.net>,
Brad Knowles <brad@stop.mail-abuse.org>, nanog@nanog.org
In-Reply-To: <200507060408.j6648wTi013249@turing-police.cc.vt.edu>
Errors-To: owner-nanog@merit.edu
On Wed, Jul 06, 2005 at 12:08:23AM -0400, Valdis.Kletnieks@vt.edu wrote:
> > What about setting your highest order MX and lowest order MX to point to
> > the same set of mail servers, and hide your backup servers in the
> > middle.
> Devious. ;)
Another: highest MX pointing to server which only responds after 5-10 secs
with 451 instead of 220-hello -- MTAs will try different MX, spammers will
try to send or disconnect, but mails will be rejected anyway.
p.
--
Beware of he who would deny you access to information, for in his
heart he dreams himself your master. -- Commissioner Pravin Lal
