A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Receiver-Driven Extensions to SMTP
Author(s) : Z. Duan, et al.
Filename : draft-duan-smtp-receiver-driven-01.txt
Pages : 18
Date : 2005-7-6
The Differentiated Mail Transfer Protocol (DMTP) provides simple
extensions to the Simple Mail Transfer Protocol (SMTP) that enable
receivers to exercise greater control over the email delivery
process. The current SMTP-based email delivery architecture is
fundamentally sender-driven and distinctly lacks receiver control
over the message delivery mechanisms. This document describes DMTP
that enables receivers to classify senders into three categories --
allowed, denied, and unclassified -- and process the delivery of
messages from each category independently. As is the current
practice, receivers may directly accept messages from senders in the
allowed category and decline senders in the denied category. In
addition, DMTP receivers require senders in the unclassified category
to store messages on the senders' own mail servers. Such messages
are retrieved only if and when the end receivers wish to do so. By
granting greater control over message delivery to receivers and
imposing greater message storage and maintenance overhead on senders,
DMTP provides significant advantages in controlling spam. DMTP
also easily operates in conjunction with (but does not require) many
currently deployed anti-spam techniques.
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