Email RFC List

RFC stands for Request for Comments. The term is very old, and reflects back to a time when the community of engineers who designed the architecture of the Internet was much smaller and more intimate. For all practical purposes, you could think of an RFC as a document that describes a protocol specification that relates in some way the Internet.

Hunny Software collected the following list of RFCs that pertain to Internet Email.

Message Format

  • RFC 2822 (html) (text) Internet Message Format

  • RFC 2047 (html) (text) MIME (Multipurpose Internet Mail Extensions) Part Three: Message Header Extensions for Non-ASCII Text

  • RFC 3464 (html) (text) An Extensible Message Format for Delivery Status Notifications

SMTP - Simple Mail Transfer Protocol

  • RFC 821 (html) (text)

  • RFC 1652 (html) (text) SMTP Service Extension for 8bit-MIMEtransport

  • RFC 1869 (html) (text) SMTP Service Extensions

  • RFC 1870 (html) (text) SMTP Service Extension for Message Size Declaration

  • RFC 1985 (html) (text) SMTP Service Extension for Remote Message Queue Starting

  • RFC 2034 (html) (text) SMTP Service Extension for Returning Enhanced Error Codes

  • RFC 2476 (html) (text) Message Submission

  • RFC 2554 (html) (text) SMTP Service Extension for Authentication

  • RFC 2821 (html) (text) Simple Mail Transfer Protocol

  • RFC 2920 (html) (text) SMTP Service Extension for Command Pipelining

  • RFC 3030 (html) (text) SMTP Service Extensions for Transmission of Large and Binary MIME Messages

  • RFC 2645 (html) (text) ON-DEMAND MAIL RELAY (ODMR) SMTP with Dynamic IP Addresses

  • RFC 2852 (html) (text) Deliver By SMTP Service Extension

POP3 - Post Office Protocol, Version 3

IMAP4 - Internet Message Access Protocol, Version 4

  • RFC 2683 (html) (text) IMAP4 Implementation Recommendations

  • RFC 3501 (html) (text) Internet Message Access Protocol - Version 4rev1