[65619] in North American Network Operators' Group
Re: AOL rejecting mail from IP's w/o reverse DNS ?
daemon@ATHENA.MIT.EDU (Steven M. Bellovin)
Wed Dec 3 14:27:42 2003
From: "Steven M. Bellovin" <smb@research.att.com>
To: Matthew Crocker <matthew@crocker.com>
Cc: "Christopher X. Candreva" <chris@westnet.com>, nanog@nanog.org
In-Reply-To: Your message of "Wed, 03 Dec 2003 14:15:07 EST."
<01D22399-25C5-11D8-940C-000A956885D4@crocker.com>
Date: Wed, 03 Dec 2003 14:27:02 -0500
Errors-To: owner-nanog-outgoing@merit.edu
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
