[65622] in North American Network Operators' Group
RE: AOL rejecting mail from IP's w/o reverse DNS?
daemon@ATHENA.MIT.EDU (Michael Hallgren)
Wed Dec 3 16:04:21 2003
From: "Michael Hallgren" <m.hallgren@free.fr>
To: <nanog@merit.edu>
Date: Wed, 3 Dec 2003 22:03:42 +0100
In-Reply-To: <Pine.LNX.4.50.0312031500572.5905-100000@ordinaryworld.com>
Errors-To: owner-nanog-outgoing@merit.edu
>
> You mean like Level3?
>
Well,... proxying (in any shape) should, hopefully, not happen prior to
having a decent downstream trust relation onboard... (?)...
mh
> -----Original Message-----
> From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of
> Steven M. Bellovin
> Sent: Wednesday, December 03, 2003 2:27 PM
> To: Matthew Crocker
> Cc: Christopher X. Candreva; nanog@nanog.org
> Subject: Re: AOL rejecting mail from IP's w/o reverse DNS ?
>
>
>
> In message <01D22399-25C5-11D8-940C-000A956885D4@crocker.com>, Matthew
> Crocker
>
> >>
> >
> >AOL says the PTR record needs to be assigned. It doesn't specify it
> >has to match the @domain.com in the MAIL FROM: header. Wouldn't it be
> >enough to make sure every IP address you announce has a PTR and
> >matching A record? Hasn't this been a requirement for MANY services
> >for MANY years?
>
>
> Right -- and then folks will start creating wildcard PTR records...
>
>
> --Steve Bellovin, http://www.research.att.com/~smb
>
>
>
> --
> David Temkin
>
>
