Appendix D: Email Related RFCs

For technical material on the protocols for email, see the many “Request for Comments” documents (RFCs) available on the web. These documents explain the rules that email and other software products must follow in order to work cooperatively with each other on the Internet. Understanding these rules is often helpful for understanding and troubleshooting problems.

RFCs and RFC Web Sites

All RFCs                                      

3000 Internet Official Protocol Standards

Internet Drafts

821 Simple Mail Transfer Protocol

2821 Simple Mail Transfer Protocol

822 Standard for the Format of ARPA Internet Text Messages

2822 Internet Message Format 

1123 Requirements for Internet Hosts-- Application and Support

2045 MIME Part 1: Format of the Internet Message Bodies

2046 MIME Part 2: Media Types

2047 MIME Part 3: Message Header Extensions for Non-ASCII Text

2049 MIME Part 5: Conformance Criteria and Examples

1894 An Extensible Message Format for Delivery Status Notifications (DSNs)

1893 Enhanced Mail System Status Codes

1855 Netiquette Guidelines

2505 Anti-Spam Recommendations for SMTP MTAs

2635 DON'T SPEW: A Set of Guidelines for Mass Unsolicited Mailings and Postings (spam*)

3098 How to Advertise Responsibly Using Email and Newsgroups

1818 Best Current Practices

1796 Not All RFCs are Standards