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Re: AOL rejecting mail from IP's w/o reverse DNS?
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