Post Office Protocol Version 3 (POP3) Support for UTF-8
RFC 6856
Document | Type |
RFC - Proposed Standard
(March 2013; No errata)
Obsoletes RFC 5721
|
|
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Authors | Randall Gellens , Chris Newman , Jiankang Yao , Kazunori Fujiwara | ||
Last updated | 2015-10-14 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | WG Document | |
Document shepherd | John Klensin | ||
Shepherd write-up | Show (last changed 2012-08-24) | ||
IESG | IESG state | RFC 6856 (Proposed Standard) | |
Action Holders |
(None)
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||
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Pete Resnick | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) R. Gellens Request for Comments: 6856 QUALCOMM Incorporated Obsoletes: 5721 C. Newman Category: Standards Track Oracle ISSN: 2070-1721 J. Yao CNNIC K. Fujiwara JPRS March 2013 Post Office Protocol Version 3 (POP3) Support for UTF-8 Abstract This specification extends the Post Office Protocol version 3 (POP3) to support international strings encoded in UTF-8 in usernames, passwords, mail addresses, message headers, and protocol-level text strings. Status of This Memo This is an Internet Standards Track document. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6856. Gellens, et al. Standards Track [Page 1] RFC 6856 POP3 Support for UTF-8 March 2013 Copyright Notice Copyright (c) 2013 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 Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. This document may contain material from IETF Documents or IETF Contributions published or made publicly available before November 10, 2008. The person(s) controlling the copyright in some of this material may not have granted the IETF Trust the right to allow modifications of such material outside the IETF Standards Process. Without obtaining an adequate license from the person(s) controlling the copyright in such materials, this document may not be modified outside the IETF Standards Process, and derivative works of it may not be created outside the IETF Standards Process, except to format it for publication as an RFC or to translate it into languages other than English. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1. Conventions Used in This Document . . . . . . . . . . . . 3 2. "UTF8" Capability . . . . . . . . . . . . . . . . . . . . . . 4 2.1. The "UTF8" Command . . . . . . . . . . . . . . . . . . . . 5 2.2. USER Argument to "UTF8" Capability . . . . . . . . . . . . 6 3. "LANG" Capability . . . . . . . . . . . . . . . . . . . . . . 7 3.1. Definition . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2. Discussion . . . . . . . . . . . . . . . . . . . . . . . . 7 3.3. Examples . . . . . . . . . . . . . . . . . . . . . . . . . 8 4. Non-ASCII Character Maildrops . . . . . . . . . . . . . . . . 9 5. "UTF8" Response Code . . . . . . . . . . . . . . . . . . . . . 10 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 10 7. Security Considerations . . . . . . . . . . . . . . . . . . . 10 8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8.1. Normative References . . . . . . . . . . . . . . . . . . . 11 8.2. Informative References . . . . . . . . . . . . . . . . . . 12 Appendix A. Design Rationale . . . . . . . . . . . . . . . . . . 13 Appendix B. Acknowledgments . . . . . . . . . . . . . . . . . . . 13 Gellens, et al. Standards Track [Page 2] RFC 6856 POP3 Support for UTF-8 March 2013 1. Introduction This document forms part of the Email Address Internationalization protocols described in the Email Address Internationalization Framework document [RFC6530]. As part of the overall Email Address Internationalization work, email messages can be transmitted and delivered containing a Unicode string encoded in UTF-8 in the header and/or body, and maildrops that are accessed using POP3 [RFC1939]Show full document text