North American Network Operators Group

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Re: question on ptr rr

  • From: Andrew - Supernews
  • Date: Sun Feb 08 16:05:07 2004

>>>>> "Paul" == Paul Vixie <[email protected]> writes:

 Paul> that's one check of many.  the PTR has to match the HELO, which
 Paul> means all of the worms and spammers who forge
 Paul> addresses and use YAHOO.COM as their HELO will continue to get
 Paul> hammered.

If you're going to get picky about HELO names, then it's better to
require that the HELO has an A record pointing to the connecting IP,
rather than look at PTR.

Andrew, Supernews