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Internationalized Delivery Status and Disposition Notifications (RFC5337)

IP.com Disclosure Number: IPCOM000174394D
Original Publication Date: 2008-Sep-01
Included in the Prior Art Database: 2008-Sep-06
Document File: 19 page(s) / 36K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

C. Newman: AUTHOR [+3]

Abstract

Delivery status notifications (DSNs) are critical to the correct operation of an email system. However, the existing Draft Standards (RFC 3461, RFC 3462, RFC 3464) are presently limited to US-ASCII text in the machine-readable portions of the protocol. This specification adds a new address type for international email addresses so an original recipient address with non-US-ASCII characters can be correctly preserved even after downgrading. This also provides updated content return media types for delivery status notifications and message disposition notifications to support use of the new address type.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 7% of the total text.

Network Working Group                                          C. Newman Request for Comments: 5337                              Sun Microsystems Updates: 3461, 3464, 3798                               A. Melnikov, Ed. Category: Experimental                                         Isode Ltd                                                           September 2008

     Internationalized Delivery Status and Disposition Notifications

Status of This Memo

   This memo defines an Experimental Protocol for the Internet    community.  It does not specify an Internet standard of any kind.    Discussion and suggestions for improvement are requested.    Distribution of this memo is unlimited.

Abstract

   Delivery status notifications (DSNs) are critical to the correct    operation of an email system.  However, the existing Draft Standards    (RFC 3461, RFC 3462, RFC 3464) are presently limited to US-ASCII text    in the machine-readable portions of the protocol.  This specification    adds a new address type for international email addresses so an    original recipient address with non-US-ASCII characters can be    correctly preserved even after downgrading.  This also provides    updated content return media types for delivery status notifications    and message disposition notifications to support use of the new    address type.

   This document experimentally extends RFC 3461, RFC 3464, and RFC    3798.

 Newman & Melnikov             Experimental                      [Page 1]
 RFC 5337             Internationalized DSN and MDNs       September 2008

 Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3

   2.  Conventions Used in This Document  . . . . . . . . . . . . . .  3

   3.  UTF-8 Address Type . . . . . . . . . . . . . . . . . . . . . .  3

   4.  UTF-8 Delivery Status Notifications  . . . . . . . . . . . . .  6

     4.1.  Additional Requirements on SMTP Servers  . . . . . . . . .  8

   5.  UTF-8 Message Disposition Notifications  . . . . . . . . . . .  9

   6.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 10

     6.1.  UTF-8 Mail Address Type Registration . . . . . . . . . . . 10

     6.2.  Update to 'smtp' Diagnostic Type Registration  . . . . . . 11

     6.3.  message/global-headers . . . . . . . . . . . . . . . . . . 11

     6.4.  message/global-delivery-status . . . . . . . . . . . . . . 12

     6.5.  message/global-disposition-notification  . . . . . . . . . 13

   7.  Security Considerations  . . . . . . . . . . . . . . . . . . . 15

   8.  References . . . . . . . . . . ....