North American Network Operators Group

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

  • From: Joe Abley
  • Date: Wed Dec 03 11:22:04 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