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

Joe Abley jabley at isc.org
Wed Dec 3 16:11:07 UTC 2003


On 3 Dec 2003, at 10:51, Suresh Ramasubramanian wrote:

>
> Randy Bush  writes on 12/3/2003 10:18 AM:
>
>> you're right.  it will be.  people will have to clean up their
>> in-addr.arpa.  or am i missing some reason they can't, other
>> than laziness?
>
> Well - unless you have a /24, in-addr.arpa is typically under the 
> control of your upstream provider.

RFC2317.

> So, especially in countries where most if not all the IP providers you 
> get are dumber than rocks, rDNS is often dismissed as an unnecessary 
> luxury.  Especially when you have maybe one IP allocated for a 
> colocated server, rather than a /24 or two.

Maybe more people should do what AOL says they may do, then.


Joe




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