React: Indicating Summary Reaction to a Message
draft-crocker-inreply-react-07

Document Type Active Internet-Draft (individual in art area)
Authors Dave Crocker  , R. Signes  , Ned Freed 
Last updated 2021-01-18
Stream IETF
Intended RFC status Experimental
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Network Working Group                                         D. Crocker
Internet-Draft                               Brandenburg InternetWorking
Intended status: Experimental                                  R. Signes
Expires: July 22, 2021                                          Fastmail
                                                                N. Freed
                                                                  Oracle
                                                        January 18, 2021

            React: Indicating Summary Reaction to a Message
                     draft-crocker-inreply-react-07

Abstract

   The popularity of social media has led to user comfort with easily
   signaling basic reactions to an author's posting, such as with a
   'thumbs up' or 'smiley' graphic.  This specification permits a
   similar facility for Internet Mail.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on July 22, 2021.

Copyright Notice

   Copyright (c) 2021 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   include Simplified BSD License text as described in Section 4.e of

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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Reaction Content-Disposition  . . . . . . . . . . . . . . . .   3
   3.  Reaction Message Processing . . . . . . . . . . . . . . . . .   4
   4.  Usability Considerations  . . . . . . . . . . . . . . . . . .   5
     4.1.  Example Message . . . . . . . . . . . . . . . . . . . . .   5
     4.2.  Example Display . . . . . . . . . . . . . . . . . . . . .   6
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   7.  Experimental Goals  . . . . . . . . . . . . . . . . . . . . .   7
   8.  Normative References  . . . . . . . . . . . . . . . . . . . .   7
   Appendix A.  Acknowledgements . . . . . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   The popularity of social media has led to user comfort with easily
   signaling summary reactions to an author's posting, by marking basic
   emoji graphics, such as with a 'thumbs up', 'heart', or 'smiley'
   indication.  Sometimes the permitted repertoire is constrained to a
   small set and sometimes a more extensive range of indicators is
   supported.

   This specification defines a similar facility for Internet Mail.

   While it is already possible to include symbols and graphics as part
   of an email reply's content, there has not been an established means
   of signalling the semantic substance that such data are to be taken
   as a summary 'reaction' to the original message.  That is, a
   mechanism to identify symbols as specifically providing a summary
   reaction to the cited message, rather than merely being part of the
   free text in the body of a response.  Such a structured use of the
   symbol(s) allows recipient MUAs to correlate this reaction to the
   original message and possibly to display the information
   distinctively.

   This facility defines a new MIME Content-Disposition, to be used in
   conjunction with the In-Reply-To header field, to specify that a part
   of a message containing one or more emojis be treated as a summary
   reaction to a previous message.

   Unless provided here, terminology, architecture and specification
   notation used in this document are incorporated from [Mail-Arch],

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   [Mail-Fmt], [MIME], and [ABNF].  The ABNF rule Emoji-Seq is inherited
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