A New Internet-Draft is available from the on-line Internet-Drafts directories.
Abstract: “This document gives instructions for implementing a mail system that will reduce the amount of SPAM received by the end users. The instructions specify disposable and single-purpose mailboxes that will allow for the source of SPAM to be easily identified.”
Nothing revolutionary, more like a BCP of using sub-addresses in spam fighting. It actually describes many of the techniques available in the qmail-smtpd replacement I’m working on.
http://www.ietf.org/internet-drafts/draft-kularski-spam-spamreduce-06.txt