MTA MARK draft has been posted to the ID archive:
http://www.ietf.org/internet-drafts/draft-stumpf-dns-mtamark-00.txt
Abstract:
" In contrast to other more extensive approaches to deal with
unsolicited email, commonly called "spam", this memo discusses a very
simple authentication scheme. It uses marking of hosts in reverse DNS
(in-addr.arpa zone) to allow the receiving mail transfer agents to
decide whether the connecting (sending) host is a designated mail
transfer agent (MTA) or not.
Despite being a weaker scheme than most of the other proposals
currently discussed, it can reduce the amount of spam and viruses/
worms significantly and has the advantage that it can be implemented
based on existing and well-established Internet technology like DNS
without any changes to that technology.
"
Yakov
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Yakov Shafranovich / asrg <at> shaftek.org
SolidMatrix Technologies, Inc. / research <at> solidmatrix.com
"I ate your Web page. / Forgive me. It was juicy / And tart on my
tongue." (MIT's 404 Message)
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