[30683] in North American Network Operators' Group
DUL list objectives
daemon@ATHENA.MIT.EDU (Joe Rhett)
Wed Aug 23 21:43:17 2000
Date: Wed, 23 Aug 2000 18:41:26 -0700
From: Joe Rhett <jrhett@isite.net>
To: "L. Sassaman" <rabbi@quickie.net>
Cc: Peter van Dijk <petervd@pc-peter.vuurwerk.nl>, nanog@merit.edu
Message-ID: <20000823184126.E3999@isite.net>
Mail-Followup-To: "L. Sassaman" <rabbi@quickie.net>,
Peter van Dijk <petervd@pc-peter.vuurwerk.nl>, nanog@merit.edu
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In-Reply-To: <Pine.LNX.4.21.QNWS_2.0008231726130.7270-100000@thetis.deor.org>; from rabbi@quickie.net on Wed, Aug 23, 2000 at 05:40:34PM -0700
Errors-To: owner-nanog-outgoing@merit.edu
> The DUL list is extremely useful. J.D. can correct me if I am wrong, but
> they don't do any probing with this list; they just list the IPs that are
> in dialup pools. It doesn't matter if they have an open relay or no mail
> server at all. Since there's rarely any legitimate reason for someone to
> be sending mail from a mail server on a dialup line, this easily blocks a
> large source of spam with little risk.
=20
More to the point, they only list IP networks that the administrator of the
network has _asked_ them to list. This list is a voluntary opt-in on the
part of the ISP in question.
--=20
Joe Rhett Chief Technology Officer
JRhett@ISite.Net ISite Services, Inc.
PGP keys and contact information: http://www.noc.isite.net/Staff/
