On Sun, Feb 22, 2004 at 07:22:03AM -0600, Peter Seebach wrote:
> Yes, it does.  There is no sysadmin incapable of providing valid reverse

Yes, there is; because they don't have control on the reverse; their ISP do,
and doesn't care.
And no they can't change ISP, because this is the only ISP available in their
area.

The place where I work implements such a policy, and ended up with a whitelist
of IP addresses for peoples who *can't* get their reverse fixed (and the mail
admin there tries very hard to get peoples fix their DNS before adding an
entry to the whitelist).
Maintaining a whitelist isn't something doable for a public list server.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--