[73887] in North American Network Operators' Group
Re: Are AOL's MXs mass rejecting anyone else's emails?
daemon@ATHENA.MIT.EDU (Suresh Ramasubramanian)
Tue Sep 7 08:30:06 2004
Date: Tue, 07 Sep 2004 17:56:31 +0530
From: Suresh Ramasubramanian <suresh@outblaze.com>
To: Robert Blayzor <rblayzor@inoc.net>
Cc: Peter Galbavy <peter.galbavy@knowtion.net>, rwcrowe@comcast.net,
andrew@ishiboo.com, nanog@merit.edu
In-Reply-To: <413DA5A6.8030905@inoc.net>
Errors-To: owner-nanog-outgoing@merit.edu
Robert Blayzor wrote:
>
> I'm not calling them out on it, I'm just stating that rejecting mail
> with a 500 series error due to a PTR record not being looked up will
> cause more problems and benefit. Temporary DNS errors do occur so
> slapping mail with a 500 could and will reject legit mail. Of
> course, AOL can do whatever they please....
>
AOL has a "may" in that caveat ...
> Effective immediately: AOL may no longer accept connections from IP
> addresses which have no reverse-DNS (PTR record) assigned.
That should help you put things in perspective, I guess.
srs
