You mean like Level3?
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Steven M. Bellovin
Sent: Wednesday, December 03, 2003 2:27 PM
To: Matthew Crocker
Cc: Christopher X. Candreva; [EMAIL PROTECTED]
Subject: Re: AOL rejecting mail from IP's w/o reverse DNS ?
In message <[EMAIL PROTECTED]>, 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
