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Date: Wed, 6 Aug 2003 13:00:13 -0400 (EDT)
From: Steve Hovey <shovey@buffnet.net>
To: Bill Campbell <freebsd@celestial.com>
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cc: questions@freebsd.org
Subject: Re: ISPs blocking SMTP connections from dynamic IP address space
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> We started blocking on no rDNS several months ago, and it's been extremely
> effective with low false positive problems.  I heard that AOL started
> refusing connections with no rDNS about a month ago which makes it easier
> to justify our policies to the clueless.

Yah - I waited for a month or so after AOL started - figuring they get so
much email that valid but badly done sites would have gotten with the
program by now.