MIME

Multipurpose Internet Mail Extensions

2045: Part One: Format of Internet Message Bodies

2046: Part Two: Media Types

2047: Part Three: Message Header Extensions for Non-ASCII Text

4288: Media Type Specifications and Registration Procedures

2048をobsoleteする

4289: Part Four: Registration Procedures

2048をobsoleteする

(2048: Part Four: Registration Procedures)

2049: Part Five: Conformance Criteria and Examples

SMTPとの連携

1521: Part One: Mechanisms for Specifying and Describing the Format of Internet Message Bodies

1522: Part Two: Message Header Extensions for Non-ASCII Text