Downgrading Mechanism for Email Address Internationalization

Metadata

Publisher: IETF
Doc Type: Experimental
Pages: 24
Abstract: Traditional mail systems handle only ASCII characters in SMTP envelope and mail header fields. The Email Address Internationalization (UTF8SMTP) extension allows UTF-8 characters in SMTP envelope and mail header fields. To avoid rejecting internationalized email messages when a server in the delivery path does not support the UTF8SMTP extension, some sort of converting mechanism is required. This document describes a downgrading mechanism for Email Address Internationalization. Note that this is a way to downgrade, not tunnel. There is no associated up-conversion mechanism, although internationalized email clients might use original internationalized addresses or other data when displaying or replying to downgraded messages. This memo defines an Experimental Protocol for the Internet community.
Publication Date: 2009-03-01
Status Note: Experimental
DOI: 10.17487/RFC5504
Link: https://doi.org/10.17487/RFC5504
Author(s): Kazunori Fujiwara
Yoshiro Yoneya
Keyword(s): EAI, Mail

Latest version of IETF RFC 5504

Document Versions — IETF RFC 5504

▶ IETF RFC 5504 (2009-03-01)

THIS DOC [SUPERSEDED] [LATEST VERSION]

Superseded by:

IETF RFC 6530 [Active*]

Normative Reference(s)

IETF RFC 1652 [Superseded*]
IETF RFC 2045 [Active*]
IETF RFC 2047 [Active*]
IETF RFC 2119 [Active*]
IETF RFC 2183 [Active*]
IETF RFC 2231 [Active*]
IETF RFC 2979 [Active*]
IETF RFC 3461 [Active*]
IETF RFC 3629 [Active*]
IETF RFC 3864 [Active*]
IETF RFC 4021 [Active*]
IETF RFC 4952 [Superseded*]
IETF RFC 5234 [Active, Amended*]
IETF RFC 5321 [Active*]
IETF RFC 5322 [Active, Amended*]
IETF RFC 5335 [Superseded*]
IETF RFC 5336 [Superseded*]
IETF RFC 5337 [Superseded*]

Bibliographic Reference(s)

Fujiwara, K., "Displaying Downgraded Messages for Email Address Internationalization", Work in Progress, March 2009. EXTERNAL
Newman, C. and A. Melnikov, "Internationalized Delivery Status and Disposition Notifications", Work in Progress, December 2008. EXTERNAL

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IETF RFC 5504, Downgrading Mechanism for Email Address Internationalization
doi: 10.17487/RFC5504
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Referenced By

IETF RFC 5738 [Superseded*]
IETF RFC 5825 [Superseded*]
IETF RFC 6530 [Active*]