Supported RFCs

A Request for Comments (RFC) is a memorandum published by the Internet Engineering Task Force (IETF) that describes methods, behaviors, research, or innovations applicable to the working of the Internet and Internet-connected systems. The RFCs supported in this release are:

  • RFC 821: Simple Mail Transfer Protocol (SMTP)

  • RFC 112: Requirements for Internet Hosts

  • RFC 1869: SMTP Service Extensions

  • RFC 1870: SMTP Service Extension for Message Size Declaration

  • RFC 1652: SMTP Service Extension for 8bit-MIME Transport

  • RFC 2197: SMTP Service Extension for Command Pipelining

  • RFC 2034: SMTP Service Extension for Returning Enhanced Error Codes

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

  • RFC 1893: Enhanced Mail System Status Codes

  • RFC 1891: SMTP Service Extension for Delivery Status Notifications

  • RFC 2442: The Batch SMTP Media Type

  • RFC 822: Standard for the Format of Arpa Internet Text Messages

  • RFC 854: Telnet Protocol Specification

  • RFC 855: Telnet Option Specifications

  • RFC 959: File Transfer Protocol

  • RFC 1268: Application of the Border Gateway Protocol

  • RFC 1282: BSD Rlogin

  • RFC 1738: Uniform Resource Locators (URL)

  • RFC 1939: Post Office Protocol - Version 3

  • RFC 1521: MIME (Multipurpose Internet Mail Extensions) Part One: Mechanisms for Specifying and Describing the Format of Internet Message Bodies

  • RFC 1035: Domain names - implementation and specification

  • RFC 1891: SMTP Service Extension for Delivery Status Notifications

  • RFC 2045: Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies

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

  • RFC 2076: Common Internet Message Headers

  • RFC 2060: Internet Message Access Protocol - Version 4rev1

  • RFC 2109: HTTP State Management Mechanism

  • RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1

  • RFC 2617: HTTP Authentication: Basic and Digest Access Authentication