RFCs
MIME:
RFC 2045 - Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies. November 1996. Draft Standard.
RFC 2046 - Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types. November 1996. Draft Standard.
RFC 2047 - Multipurpose Internet Mail Extensions (MIME) Part Three: Message Header Extensions for Non-ASCII Text. November 1996. Draft Standard.
RFC 2049 - Multipurpose Internet Mail Extensions (MIME) Part Five: Conformance Criteria and Examples. November 1996. Draft Standard.
RFC 2183 - Communicating Presentation Information in Internet Messages: The Content-Disposition Header Field. August 1997. Draft Standard.
RFC 2231 - MIME Parameter Value and Encoded Word Extensions: Character Sets, Languages, and Continuations. November 1997. Proposed Standard.
RFC 2425 - A MIME Content-Type for Directory Information. September 1998. Proposed Standard.
RFC 2557 - MIME Encapsulation of Aggregate Documents, such as HTML (MHTML). March 1999. Proposed Standard.
RFC 2646 - The Text/Plain Format Parameter. August 1999. Proposed Standard.
RFC 3458 - Message Context for Internet Mail. January 2003. Proposed Standard.
RFC 3459 - Critical Content Multi-purpose Internet Mail Extensions (MIME) Parameter. January 2003. Proposed Standard.
RFC 3462 - The Multipart/Report Content Type for the Reporting of Mail System Administrative Messages. January 2003. Draft Standard.
RFC 3548 - The Base16, Base32, and Base64 Data Encodings. July 2003. Informational.
RFC 3798 - Message Disposition Notification. May 2004. Draft Standard.
RFC 3803 - Content Duration MIME Header Definition. July 2004. Draft Standard.
RFC 4047 - MIME Sub-type Registrations for Flexible Image Transport System (FITS). April 2005. Informational.
RFC 4102 - Registration of the text/red MIME Sub-Type. June 2005. Proposed Standard.
RFC 4249 - Implementer-Friendly Specification of Message and MIME-Part Header Fields and Field Components. January 2006. Informational.
RFC 4288 - Media Type Specifications and Registration Procedures. December 2005. Best Current Practice.
RFC 4289 - Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures. December 2005. Best Current Practice.
Media Types:
RFC 2854 - The 'text/html' Media Type. June 2000. Informational.
RFC 3023 - XML Media Types. January 2001. Proposed Standard.
RFC 3420 - Internet Media Type message/sipfrag. November 2002. Proposed Standard.
RFC 3534 - The application/ogg Media Type. May 2003. Proposed Standard.
RFC 3555 - MIME Type Registration of RTP Payload Formats. July 2003. Proposed Standard.
RFC 3676 - The Text/Plain Format and DelSp Parameter. February 2004. Proposed Standard.
RFC 3745 - MIME Type Registrations for JPEG 2000 (ISO/IEC 15444). April 2004. Proposed Standard.
RFC 3778 - The application/pdf Media Type. May 2004. Informational.
RFC 3802 - Toll Quality Voice - 32 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM) MIME Sub-type Registration. July 2004. Draft Standard.
RFC 3823 - MIME Media Type for the Systems Biology Markup Language (SBML). July 2004. Informational.
RFC 3839 - MIME Type Registrations for 3rd Generation Partnership Project (3GPP) Multimedia files. July 2004. Proposed Standard.
RFC 4155 - The application/mbox Media Type. September 2005. Informational.
RFC 4337 - MIME Type Registration for MPEG-4. March 2006. Proposed Standard.
...and many more (to be completed).
SMTP (incl. ESMTP/LMTP):
RFC 1652 - SMTP Service Extension for 8bit-MIMEtransport. July 1994. Draft Standard.
RFC 1870 - SMTP Service Extension for Message Size Declaration. November 1995. Standard.
RFC 1985 - SMTP Service Extension for Remote Message Queue Starting. August 1996. Proposed Standard.
RFC 2033 - Local Mail Transfer Protocol. October 1996. Informational.
RFC 2034 - SMTP Service Extension for Returning Enhanced Error Codes. October 1996. Proposed Standard.
RFC 2554 - SMTP Service Extension for Authentication. March 1999. Proposed Standard.
RFC 2821 - Simple Mail Transfer Protocol. April 2001. Proposed Standard.
RFC 2822 - Internet Message Format. April 2001. Proposed Standard.
RFC 2920 - SMTP Service Extension for Command Pipelining. September 2000. Standard.
RFC 3207 - SMTP Service Extension for Secure SMTP over Transport Layer Security. February 2002. Proposed Standard.
RFC 3461 - Simple Mail Transfer Protocol (SMTP) Service Extension for Delivery Status Notifications (DSNs). January 2003. Draft Standard.
RFC 3463 - Enhanced Mail System Status Codes. January 2003. Draft Standard.
RFC 3848 - ESMTP and LMTP Transmission Types Registration. July 2004. Proposed Standard.
RFC 3865 - A No Soliciting Simple Mail Transfer Protocol (SMTP) Service Extension. September 2004. Proposed Standard.
RFC 4095 - Attaching Meaning to Solicitation Class Keywords. May 2005. Proposed Standard.
RFC 4409 - Message Submission for Mail. April 2006. Draft Standard.
RFC 4468 - Message Submission BURL Extension. May 2006. Proposed Standard.
Message Tracking:
RFC 3885 - SMTP Service Extension for Message Tracking. September 2004. Proposed Standard.
RFC 3886 - An Extensible Message Format for Message Tracking Responses. September 2004. Proposed Standard.
RFC 3887 - Message Tracking Query Protocol. September 2004. Proposed Standard.
RFC 3888 - Message Tracking Model and Requirements. September 2004. Informational.
Voice Profile (VPIM):
RFC 3773 - High-Level Requirements for Internet Voice Mail. June 2004. Informational.
RFC 3801 - Voice Profile for Internet Mail - version 2 (VPIMv2). June 2004. Draft Standard.
RFC 3804 - Voice Profile for Internet Mail (VPIM) Addressing. June 2004. Proposed Standard.
Operation:
RFC 3974 - SMTP Operational Experience in Mixed IPv4/v6 Environments. January 2005. Informational.
RFC 4096 - Policy-Mandated Labels Such as "Adv:" in Email Subject Headers Considered Ineffective At Best. May 2005. Informational.
Anti-SPAM:
RFC 4406 - SMTP Service Extension for Indicating the Responsible Submitter of an E-Mail. April 2006. Experimental.
RFC 4406 - Sender ID: Authenticating E-Mail. April 2006. Experimental.
RFC 4407 - Purported Responsible Address in E-Mail Messages. April 2006. Experimental.
RFC 4408 - Sender Policy Framework (SPF) for Authorizing Use of Domains in E-Mail, Version 1. April 2006. Experimental.
Misc:
RFC 4496 - Open Pluggable Edge Services (OPES) SMTP Use Cases. May 2006. Informational.
POP3:
RFC 1734 - POP3 AUTHentication command. December 1994. Proposed Standard.
RFC 1939 - Post Office Protocol - Version 3. May 1996. Standard.
RFC 1957 - Some Observations on Implementations of the Post Office Protocol (POP3). June 1996. Informational.
RFC 2195 - IMAP/POP AUTHorize Extension for Simple Challenge/Response. September 1997. Proposed Standard.
RFC 2449 - POP3 Extension Mechanism. November 1998. Proposed Standard.
RFC 3206 - The SYS and AUTH POP Response Codes. February 2002. Proposed Standard.
IMAP4:
RFC 1731 - IMAP4 Authentication Mechanisms. December 1994. Proposed Standard.
RFC 1732 - IMAP4 COMPATIBILITY WITH IMAP2 AND IMAP2BIS. December 1994. Informational.
RFC 1733 - DISTRIBUTED ELECTRONIC MAIL MODELS IN IMAP4. December 1994. Informational.
RFC 2061 - IMAP4 COMPATIBILITY WITH IMAP2BIS. December 1996. Informational.
RFC 2087 - IMAP4 QUOTA extension. January 1997. Proposed Standard.
RFC 2088 - IMAP4 non-synchronizing literals. January 1997. Proposed Standard.
RFC 2177 - IMAP4 IDLE command. June 1997. Proposed Standard.
RFC 2180 - IMAP4 Multi-Accessed Mailbox Practice. July 1997. Informational.
RFC 2193 - IMAP4 Mailbox Referrals. September 1997. Proposed Standard.
RFC 2195 - IMAP/POP AUTHorize Extension for Simple Challenge/Response. September 1997. Proposed Standard.
RFC 2221 - IMAP4 Login Referrals. October 1997. Proposed Standard.
RFC 2342 - IMAP4 Namespace. May 1998. Proposed Standard.
RFC 2359 - IMAP4 UIDPLUS extension. June 1998. Proposed Standard.
RFC 2683 - IMAP4 Implementation Recommendations. Seotember 1998. Informational.
RFC 2971 - IMAP4 ID extension. October 2000. Proposed Standard.
RFC 3348 - The Internet Message Action Protocol (IMAP4) Child Mailbox Extension. July 2002. Informational.
RFC 3501 - INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1. March 2003. Proposed Standard.
RFC 3502 - Internet Message Access Protocol (IMAP) - MULTIAPPEND Extension. March 2003. Proposed Standard.
RFC 3503 - Message Disposition Notification (MDN) profile for Internet Message Access Protocol (IMAP). March 2003. Proposed Standard.
RFC 3516 - IMAP4 Binary Content Extension. April 2003. Proposed Standard.
RFC 3691 - Internet Message Access Protocol (IMAP) UNSELECT command. February 2004. Proposed Standard.
RFC 4314 - IMAP4 Access Control List (ACL) Extension. December 2005. Proposed Standard.
RFC 4466 - Collected Extensions to IMAP4 ABNF. April 2006. Proposed Standard.
RFC 4467 - Internet Message Access Protocol (IMAP) - URLAUTH Extension. May 2006. Proposed Standard.
RFC 4469 - Internet Message Access Protocol (IMAP) CATENATE Extension. April 2006. Proposed Standard.
RFC 4551 - IMAP Extension for Conditional STORE Operation or Quick Flag Changes Resynchronization. June 2006. Proposed Standard.
RFC 4549 - Synchronization Operations for Disconnected IMAP4 Clients. June 2006. Informational.
RFC 4550 - Internet Email to Support Diverse Service Environments (Lemonade) Profile. June 2006. Proposed Standard.
Sieve:
RFC 3028 - Sieve: A Mail Filtering Language. January 2001. Proposed Standard.
RFC 3431 - Sieve Extension: Relational Tests. December 2002. Proposed Standard.
RFC 3598 - Sieve Email Filtering -- Subaddress Extension. September 2003. Proposed Standard.
RFC 3685 - IEVE Email Filtering: Spamtest and VirusTest Extensions. February 2004. Proposed Standard.
Misc Mail:
RFC 3656 - The Mailbox Update (MUPDATE) Distributed Mailbox Database Protocol. December 2003. Experimental.
RFC 3834 - Recommendations for Automatic Responses to Electronic Mail. August 2004. Proposed Standard.
RFC 4146 - Simple New Mail Notification. August 2005. Informational.
RFC 4356 - Mapping Between the Multimedia Messaging Service (MMS) and Internet Mail. January 2006. Proposed Standard.
News:
RFC 977 - Network News Transfer Protocol - A Proposed Standard for the Stream-Based Transmission of News. February 1986. Proposed Standard.
RFC 1036 - Standard for Interchange of USENET Messages. December 1987. Unknown.
RFC 2980 - Common NNTP Extensions. October 2000. Informational.
Headers (Mail/News/HTTP etc.):
RFC 3864 - Registration Procedures for Message Header Fields. September 2004. Best Current Practice.
RFC 4021 - Registration of Mail and MIME Header Fields. March 2005. Proposed Standard.
Instant Messaging:
IMPP:
RFC 2778 - A Model for Presence and Instant Messaging. February 2000. Informational.
RFC 2779 - Instant Messaging / Presence Protocol Requirements. February 2000. Informational.
RFC 3339 - Date and Time on the Internet: Timestamps. July 2002. Proposed Standard.
RFC 3859 - Common Profile for Presence (CPP). August 2004. Proposed Standard.
RFC 3860 - Common Profile for Instant Messaging (CPIM). August 2004. Proposed Standard.
RFC 3861 - Address Resolution for Instant Messaging and Presence. August 2004. Proposed Standard.
RFC 3862 - Common Presence and Instant Messaging (CPIM): Message Format. August 2004. Proposed Standard.
RFC 3863 - Presence Information Data Format (PIDF). August 2004. Proposed Standard.
XMPP:
RFC 3821 - Extensible Messaging and Presence Protocol (XMPP): Instant Messaging and Presence. October 2004. Proposed Standard.
RFC 3822 - Mapping the Extensible Messaging and Presence Protocol (XMPP) to Common Presence and Instant Messaging (CPIM). October 2004. Proposed Standard.
RFC 3823 - End-to-End Signing and Object Encryption for the Extensible Messaging and Presence Protocol (XMPP). October 2004. Proposed Standard.
IRC:
RFC 1459 - Internet Relay Chat Protocol. May 1993. Experimental.
RFC 2810 - Internet Relay Chat: Architecture. April 2000. Informational.
RFC 2811 - Internet Relay Chat: Channel Management. April 2000. Informational.
RFC 2812 - Internet Relay Chat: Client Protocol. April 2000. Informational.
RFC 2813 - Internet Relay Chat: Server Protocol. April 2000. Informational.
Working Group Drafts
Mail (SMTP):
draft-ietf-fax-esmtp-conneg - SMTP Service Extension for Fax Content Negotiation.
draft-ietf-msgtrk-smtpext - SMTP Service Extension for Message Tracking.
draft-ietf-msgtrk-trkstat - An Extensible Message Format for Message Tracking.
Mail (IMAP):
draft-ietf-imapext-annotate - IMAP ANNOTATE Extension.
draft-ietf-imapext-condstore - IMAP Extension for Conditional STORE operation.
draft-ietf-imapext-i18n - Internet Message Access Protocol Internationalization. May 2003 (Initial Version).
draft-ietf-imapext-list-extensions - IMAP4 LIST Command Extensions.
draft-ietf-imapext-sort - Internet Message Access Protocol - Sort and Thread Extension.
Mail Message:
draft-ietf-openpgp-rfc2440bis - OpenPGP Message Format.
raft-ietf-smime-camellia - Use of the Camellia Encryption Algorithm in CMS.
raft-ietf-smime-cms-rsa-kem - Use of the RSA-KEM Key Transport Algorithm in CMS. May 2003 (initial version).
raft-ietf-smime-examples - Examples of S/MIME Messages.
draft-ietf-smime-hmac-key-wrap - Wrapping an HMAC key with a Triple-DES Key or an AES Key.
draft-ietf-smime-pss - Use of the PSS Signature Algorithm in CMS.
draft-ietf-smime-rfc2633bis - S/MIME Version 3.1 Message Specification.
draft-ietf-smime-x400transport - Transporting S/MIME Objects in X.400.
draft-ietf-smime-x400wrap - Securing X.400 Content with S/MIME.
News:
draft-ietf-nntpext-base - Network News Transport Protocol.
draft-ietf-nntpext-streaming - NNTP Extension for Streaming Feeds. June 2003 (initial version).
draft-ietf-nntpext-tls-nntp - Using TLS with NNTP.
draft-ietf-usefor-article - News Article Format.
Instant Messaging (XMPP):
draft-ietf-xmpp-core - XMPP Core.
draft-ietf-xmpp-e2e - End-to-End Object Encryption in XMPP.
draft-ietf-xmpp-im - XMPP Instant Messaging.
draft-ietf-xmpp-nodeprep - Nodeprep: A Stringprep Profile for Node Identifiers in XMPP.
draft-ietf-xmpp-resourceprep - Resourceprep: A Stringprep Profile for Resource Identifiers in XMPP.
Misc:
draft-ietf-vpim-vpimdir - Voice Messaging Directory Service.
Non WG Drafts
draft-crocker-spam-techconsider - Technical Considerations for Spam Control Mechanisms. April 2003 (initial version).
draft-daboo-imap-annotatemore - IMAP ANNOTATEMORE Extension.
draft-danisch-dns-rr-smtp - A DNS RR for simple SMTP sender authentication.
draft-diaz-nhns-01.txt - NHNS - Netnews Hierarchy Names System. August 2002.
draft-eastlake-ip-mime - IP over MIME.
draft-faerber-i18n-email-netnews-names-00.txt - Internationalisation of Email Addresses, Newsgroup Names and similar Identifiers. August 2002.
draft-fecyk-dsprotocol - Designated Senders Protocol A Way to Identify Hosts Authorized to Send SMTP Traffic.
draft-kohn-news-article - News Article Format.
draft-leiba-imap-search-multiple - IMAP4 SEARCHM Command for Multiple Mailboxes.
draft-shveidel-mediasize - SMTP Service Extension for message Media Size declaration.
IRC:
draft-brocklesby-irc-isupport - IRC RPL_ISUPPORT Numeric Definition.
Links
IETF Working Group An Open Specification for Pretty Good Privacy (openpgp)
IETF Working Group S/MIME Mail Security (smime)
IETF Working Group Voice Profile for Internet Mail (vpim)
Voice Profile for Internet Mail
IETF Working Group Internet Message Access Protocol Extension (imapext)
IETF Working Group Enhancements to Internet email to support diverse service environments (lemonade)
IETF Working Group NNTP Extensions (nntpext)
IETF Working Group Usenet Article Standard Update (usefor)
IETF Working Group Extensible Messaging and Presence Protocol (xmpp)
IETF Working Group Application Configuration Access Protocol (acap)
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