Using Message Disposition Notifications to Indicate Supported Features

Document Type Expired Internet-Draft (fax WG)
Last updated 1998-03-10
Stream IETF
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes how Message Disposition Notifications [MDN] are used to indicate the supported features of a user's Mail User Agent (MUA). Knowing the supported features of a recipient or the recipient's MUA allows a sender to generate messages which take advantage of those features. Features indicate the MIME content-types are supported by the Mail User Agent, or finer gradations of features such as resolution, maximum image size, or software version number. The representation of features is still under discussion in the CONNEG working group. Features are registered using the framework described in [FEATURES].


Larry Masinter (
Dan Wing (

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