RFC 1522

Network Working Group
Request for Comments: 1522
Obsoletes: 1342
Category: Standards Track

K. Moore
University of Tennessee
September 1993

Status of this Memo

This RFC specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Abstract

This memo describes an extension to the message format defined in RFC 1521 [1], to allow the representation of character sets other than ASCII in RFC 822 (STD 11) message headers. The extensions described were designed to be highly compatible with existing Internet mail handling software, and to be easily implemented in mail readers that support RFC 1521.

Table of Contents

• 1. Introduction
• 2. Syntax of encoded-words
• 3. Character sets
• 4. Encodings
  • 4.1. The "B" encoding
  • 4.2. The "Q" encoding
• 5. Use of encoded-words in message headers
• 6. Support of encoded-words by mail readers
  • 6.1. Recognition of encoded-words in message headers
  • 6.2. Display of encoded-words
  • 6.3. Mail reader handling of incorrectly formed encoded-words
• 7. Conformance
• 8. Examples
• 9. References
• 10. Security Considerations
• 11. Author's Address

• Original text document
• Complete HTML RFC (TAR, TGZ, or ZIP format)