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

Wed Dec 3 19:27:02 UTC 2003

In message <01D22399-25C5-11D8-940C-000A956885D4 at 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