Challenge / Response Interworking (CRI) Framework for Challenge / Response Email Systems
draft-irtf-asrg-cri-00

Document Type Expired Internet-Draft (asrg RG)
Last updated 2003-09-23
Stream IRTF
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-irtf-asrg-cri-00.txt

Abstract

SMTP was designed simply to deliver email messages without authenticating sources or senders of email messages. In an affort to reduce spam on the Internet, Challenge/Response ('C/R') email systems were developed to provide a method for validating message origination for an intended recipient. This document defines a Challenge / Response Interworking ('CRI') protocol by proposing the use of SMTP extensions and MIME headers for interoperability of C/R systems. This document also defines a set of guidelines for continued use with existing non-CRI mail systems and clients.

Authors

Eric Dean (eric@crystalballinc.com)
Yakov Shafranovich (research@solidmatrix.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)