[96261] in North American Network Operators' Group
Re: Hotmail blackholing certain IP ranges ?
daemon@ATHENA.MIT.EDU (Chris Edwards)
Wed Apr 25 17:44:06 2007
Date: Wed, 25 Apr 2007 22:43:14 +0100 (BST)
From: Chris Edwards <chris@eng.gla.ac.uk>
To: nanog@merit.edu
In-Reply-To: <7.0.1.0.2.20070425202216.052f82c8@easyhosting.nl>
Errors-To: owner-nanog@merit.edu
Some sites have recently reported problems mailing hotmail due to
inability to resolve the hotmail MX records. This appears to be due to
the hotmail DNS servers now blackholing DNS queries where the UDP source
port was < 1024.
I can reproduce this here and now, but don't know if it's new.
Chris
--
Chris Edwards, Glasgow University Computing Service
