| 9901 | Selective Disclosure for JSON Web TokensD. Fett, K. Yasuda, B. Campbell | Proposed Standard | November 2025 |
| 9876 | Updates to the IANA Registration Procedures for Constrained Application Protocol (CoAP) Content-FormatsT. Fossati, E. Dijk | Proposed Standard | November 2025 |
| 9804 | Simple Public Key Infrastructure (SPKI) S-ExpressionsR. Rivest, D. Eastlake 3rd | Informational | June 2025 |
| 9694 | Guidelines for the Definition of New Top-Level Media TypesM.J. Dürst | Best Current Practice | March 2025 |
| 9649 | WebP Image FormatJ. Zern, P. Massimino, J. Alakuijala | Informational | November 2024 |
| 9639 | Free Lossless Audio Codec (FLAC)M.Q.C. van Beurden, A. Weaver | Proposed Standard | December 2024 |
| 9635 | Grant Negotiation and Authorization Protocol (GNAP)J. Richer, Ed., F. Imbault | Proposed Standard | October 2024 |
| 9553 | JSContact: A JSON Representation of Contact DataR. Stepanek, M. Loffredo | Proposed Standard | May 2024 |
| 9449 | OAuth 2.0 Demonstrating Proof of Possession (DPoP)D. Fett, B. Campbell, J. Bradley, T. Lodderstedt, M. Jones, D. Waite | Proposed Standard | September 2023 |
| 9399 | Internet X.509 Public Key Infrastructure: Logotypes in X.509 CertificatesS. Santesson, R. Housley, T. Freeman, L. Rosenthol | Proposed Standard | May 2023 |
| 9309 | Robots Exclusion ProtocolM. Koster, G. Illyes, H. Zeller, L. Sassman | Proposed Standard | September 2022 |
| 9275 | An Extension for Application-Layer Traffic Optimization (ALTO): Path VectorK. Gao, Y. Lee, S. Randriamasy, Y. Yang, J. Zhang | Experimental | September 2022 |
| 9152 | Secure Object Delivery Protocol (SODP) Server Interfaces: NSA's Profile for Delivery of Certificates, Certificate Revocation Lists (CRLs), and Symmetric Keys to ClientsM. Jenkins, S. Turner | Informational | April 2022 |
| 9116 | A File Format to Aid in Security Vulnerability DisclosureE. Foudil, Y. Shafranovich | Informational | April 2022 |
| 9112 | HTTP/1.1R. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 9110 | HTTP SemanticsR. Fielding, Ed., M. Nottingham, Ed., J. Reschke, Ed. | Internet Standard | June 2022 |
| 9101 | The OAuth 2.0 Authorization Framework: JWT-Secured Authorization Request (JAR)N. Sakimura, J. Bradley, M. Jones | Proposed Standard | August 2021 |
| 9068 | JSON Web Token (JWT) Profile for OAuth 2.0 Access TokensV. Bertocci | Proposed Standard | October 2021 |
| 9051 | Internet Message Access Protocol (IMAP) - Version 4rev2A. Melnikov, Ed., B. Leiba, Ed. | Proposed Standard | August 2021 |
| 8970 | IMAP4 Extension: Message Preview GenerationM. Slusarz | Proposed Standard | December 2020 |
| 8951 | Clarification of Enrollment over Secure Transport (EST): Transfer Encodings and ASN.1M. Richardson, T. Werner, W. Pan | Proposed Standard | November 2020 |
| 8823 | Extensions to Automatic Certificate Management Environment for End-User S/MIME CertificatesA. Melnikov | Informational | April 2021 |
| 8710 | Multipart Content-Format for the Constrained Application Protocol (CoAP)T. Fossati, K. Hartke, C. Bormann | Proposed Standard | February 2020 |
| 8580 | Sieve Extension: File Carbon Copy (FCC)K. Murchison, B. Gondwana | Proposed Standard | May 2019 |
| 8551 | Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Message SpecificationJ. Schaad, B. Ramsdell, S. Turner | Proposed Standard | April 2019 |
| 8458 | Using National Bibliography Numbers as Uniform Resource NamesJ. Hakala | Informational | October 2018 |
| 8417 | Security Event Token (SET)P. Hunt, Ed., M. Jones, W. Denniss, M. Ansari | Proposed Standard | July 2018 |
| 8295 | EST (Enrollment over Secure Transport) ExtensionsS. Turner | Proposed Standard | January 2018 |
| 8288 | Web LinkingM. Nottingham | Proposed Standard | October 2017 |
| 8255 | Multiple Language Content TypeN. Tomkinson, N. Borenstein | Proposed Standard | October 2017 |
| 8226 | Secure Telephone Identity Credentials: CertificatesJ. Peterson, S. Turner | Proposed Standard | February 2018 |
| 8225 | PASSporT: Personal Assertion TokenC. Wendt, J. Peterson | Proposed Standard | February 2018 |
| 8216 | HTTP Live StreamingR. Pantos, Ed., W. May | Informational | August 2017 |
| 8098 | Message Disposition NotificationT. Hansen, Ed., A. Melnikov, Ed. | Internet Standard | February 2017 |
| 8040 | RESTCONF ProtocolA. Bierman, M. Bjorklund, K. Watsen | Proposed Standard | January 2017 |
| 8011 | Internet Printing Protocol/1.1: Model and SemanticsM. Sweet, I. McDonald | Internet Standard | January 2017 |
| 7808 | Time Zone Data Distribution ServiceM. Douglass, C. Daboo | Proposed Standard | March 2016 |
| 7763 | The text/markdown Media TypeS. Leonard | Informational | March 2016 |
| 7749 | The "xml2rfc" Version 2 VocabularyJ. Reschke · obsoleted by RFC 7991 | Informational | February 2016 |
| 7578 | Returning Values from Forms: multipart/form-dataL. Masinter | Proposed Standard | July 2015 |
| 7519 | JSON Web Token (JWT)M. Jones, J. Bradley, N. Sakimura | Proposed Standard | May 2015 |
| 7517 | JSON Web Key (JWK)M. Jones | Proposed Standard | May 2015 |
| 7515 | JSON Web Signature (JWS)M. Jones, J. Bradley, N. Sakimura | Proposed Standard | May 2015 |
| 7303 | XML Media TypesH. Thompson, C. Lilley | Proposed Standard | July 2014 |
| 7285 | Application-Layer Traffic Optimization (ALTO) ProtocolR. Alimi, Ed., R. Penno, Ed., Y. Yang, Ed., S. Kiesel, S. Previdi, W. Roome, S. Shalunov, R. Woundy | Proposed Standard | September 2014 |
| 7252 | The Constrained Application Protocol (CoAP)Z. Shelby, K. Hartke, C. Bormann | Proposed Standard | June 2014 |
| 7233 | Hypertext Transfer Protocol (HTTP/1.1): Range RequestsR. Fielding, Ed., Y. Lafon, Ed., J. Reschke, Ed. · obsoleted by RFC 9110 | Proposed Standard | June 2014 |
| 7231 | Hypertext Transfer Protocol (HTTP/1.1): Semantics and ContentR. Fielding, Ed., J. Reschke, Ed. · obsoleted by RFC 9110 | Proposed Standard | June 2014 |
| 7111 | URI Fragment Identifiers for the text/csv Media TypeM. Hausenblas, E. Wilde, J. Tennison | Informational | January 2014 |
| 7035 | Relative Location RepresentationM. Thomson, B. Rosen, D. Stanley, G. Bajko, A. Thomson | Proposed Standard | October 2013 |
| 6917 | Media Resource BrokeringC. Boulton, L. Miniero, G. Munson | Proposed Standard | April 2013 |
| 6838 | Media Type Specifications and Registration ProceduresN. Freed, J. Klensin, T. Hansen | Best Current Practice | January 2013 |
| 6787 | Media Resource Control Protocol Version 2 (MRCPv2)D. Burnett, S. Shanmugham | Proposed Standard | November 2012 |
| 6657 | Update to MIME regarding "charset" Parameter Handling in Textual Media TypesA. Melnikov, J. Reschke | Proposed Standard | July 2012 |
| 6648 | Deprecating the "X-" Prefix and Similar Constructs in Application ProtocolsP. Saint-Andre, D. Crocker, M. Nottingham | Best Current Practice | June 2012 |
| 6591 | Authentication Failure Reporting Using the Abuse Reporting FormatH. Fontana | Proposed Standard | April 2012 |
| 6558 | Sieve Extension for Converting Messages before DeliveryA. Melnikov, B. Leiba, K. Li | Proposed Standard | March 2012 |
| 6533 | Internationalized Delivery Status and Disposition NotificationsT. Hansen, Ed., C. Newman, A. Melnikov | Proposed Standard | February 2012 |
| 6532 | Internationalized Email HeadersA. Yang, S. Steele, N. Freed | Proposed Standard | February 2012 |
| 6530 | Overview and Framework for Internationalized EmailJ. Klensin, Y. Ko | Proposed Standard | February 2012 |
| 6522 | The Multipart/Report Media Type for the Reporting of Mail System Administrative MessagesM. Kucherawy, Ed. | Internet Standard | January 2012 |
| 6377 | DomainKeys Identified Mail (DKIM) and Mailing ListsM. Kucherawy | Best Current Practice | September 2011 |
| 6350 | vCard Format SpecificationS. Perreault | Proposed Standard | August 2011 |
| 6266 | Use of the Content-Disposition Header Field in the Hypertext Transfer Protocol (HTTP)J. Reschke | Proposed Standard | June 2011 |
| 6152 | SMTP Service Extension for 8-bit MIME TransportJ. Klensin, N. Freed, M. Rose, D. Crocker, Ed. | Internet Standard | March 2011 |
| 6072 | Certificate Management Service for the Session Initiation Protocol (SIP)C. Jennings, J. Fischl, Ed. | Proposed Standard | February 2011 |
| 6047 | iCalendar Message-Based Interoperability Protocol (iMIP)A. Melnikov, Ed. | Proposed Standard | December 2010 |
| 5965 | An Extensible Format for Email Feedback ReportsY. Shafranovich, J. Levine, M. Kucherawy | Proposed Standard | August 2010 |
| 5751 | Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.2 Message SpecificationB. Ramsdell, S. Turner · obsoleted by RFC 8551 | Proposed Standard | January 2010 |
| 5707 | Media Server Markup Language (MSML)A. Saleem, Y. Xin, G. Sharratt | Informational | February 2010 |
| 5646 | Tags for Identifying LanguagesA. Phillips, Ed., M. Davis, Ed. | Best Current Practice | September 2009 |
| 5621 | Message Body Handling in the Session Initiation Protocol (SIP)G. Camarillo | Proposed Standard | September 2009 |
| 5616 | Streaming Internet Messaging AttachmentsN. Cook | Informational | August 2009 |
| 5598 | Internet Mail ArchitectureD. Crocker | Informational | July 2009 |
| 5545 | Internet Calendaring and Scheduling Core Object Specification (iCalendar)B. Desruisseaux, Ed. | Proposed Standard | September 2009 |
| 5538 | The 'news' and 'nntp' URI SchemesF. Ellermann | Proposed Standard | April 2010 |
| 5537 | Netnews Architecture and ProtocolsR. Allbery, Ed., C. Lindsey | Proposed Standard | November 2009 |
| 5536 | Netnews Article FormatK. Murchison, Ed., C. Lindsey, D. Kohn | Proposed Standard | November 2009 |
| 5524 | Extended URLFETCH for Binary and Converted PartsD. Cridland | Proposed Standard | May 2009 |
| 5337 | Internationalized Delivery Status and Disposition NotificationsC. Newman, A. Melnikov, Ed. · obsoleted by RFC 6533 | Experimental | September 2008 |
| 5335 | Internationalized Email HeadersA. Yang, Ed. · obsoleted by RFC 6532 | Experimental | September 2008 |
| 5322 | Internet Message FormatP. Resnick, Ed. | Draft Standard | October 2008 |
| 5147 | URI Fragment Identifiers for the text/plain Media TypeE. Wilde, M. Duerst | Proposed Standard | April 2008 |
| 5122 | Internationalized Resource Identifiers (IRIs) and Uniform Resource Identifiers (URIs) for the Extensible Messaging and Presence Protocol (XMPP)P. Saint-Andre | Proposed Standard | February 2008 |
| 5064 | The Archived-At Message Header FieldM. Duerst | Proposed Standard | December 2007 |
| 4976 | Relay Extensions for the Message Sessions Relay Protocol (MSRP)C. Jennings, R. Mahy, A. B. Roach | Proposed Standard | September 2007 |
| 4975 | The Message Session Relay Protocol (MSRP)B. Campbell, Ed., R. Mahy, Ed., C. Jennings, Ed. | Proposed Standard | September 2007 |
| 4952 | Overview and Framework for Internationalized EmailJ. Klensin, Y. Ko · obsoleted by RFC 6530 | Informational | July 2007 |
| 4855 | Media Type Registration of RTP Payload FormatsS. Casner | Proposed Standard | February 2007 |
| 4823 | FTP Transport for Secure Peer-to-Peer Business Data Interchange over the InternetT. Harding, R. Scott | Informational | April 2007 |
| 4767 | The Intrusion Detection Exchange Protocol (IDXP)B. Feinstein, G. Matthews | Experimental | March 2007 |
| 4622 | Internationalized Resource Identifiers (IRIs) and Uniform Resource Identifiers (URIs) for the Extensible Messaging and Presence Protocol (XMPP)P. Saint-Andre · obsoleted by RFC 5122 | Proposed Standard | August 2006 |
| 4483 | A Mechanism for Content Indirection in Session Initiation Protocol (SIP) MessagesE. Burger, Ed. | Proposed Standard | May 2006 |
| 4463 | A Media Resource Control Protocol (MRCP) Developed by Cisco, Nuance, and SpeechworksS. Shanmugham, P. Monaco, B. Eberman | Informational | April 2006 |
| 4416 | Goals for Internet Messaging to Support Diverse Service EnvironmentsJ. Wong, Ed. | Informational | February 2006 |
| 4289 | Multipurpose Internet Mail Extensions (MIME) Part Four: Registration ProceduresN. Freed, J. Klensin | Best Current Practice | December 2005 |
| 4288 | Media Type Specifications and Registration ProceduresN. Freed, J. Klensin · obsoleted by RFC 6838 | Best Current Practice | December 2005 |
| 4263 | Media Subtype Registration for Media Type text/troffB. Lilly | Informational | January 2006 |
| 4249 | Implementer-Friendly Specification of Message and MIME-Part Header Fields and Field ComponentsB. Lilly | Informational | January 2006 |
| 4240 | Basic Network Media Services with SIPE. Burger, Ed., J. Van Dyke, A. Spitzer | Informational | December 2005 |
| 4239 | Internet Voice Messaging (IVM)S. McRae, G. Parsons | Proposed Standard | November 2005 |
| 4180 | Common Format and MIME Type for Comma-Separated Values (CSV) FilesY. Shafranovich | Informational | October 2005 |
| 4155 | The application/mbox Media TypeE. Hall | Informational | September 2005 |
| 4130 | MIME-Based Secure Peer-to-Peer Business Data Interchange Using HTTP, Applicability Statement 2 (AS2)D. Moberg, R. Drummond | Proposed Standard | July 2005 |
| 4047 | MIME Sub-type Registrations for Flexible Image Transport System (FITS)S. Allen, D. Wells | Informational | April 2005 |
| 3986 | Uniform Resource Identifier (URI): Generic SyntaxT. Berners-Lee, R. Fielding, L. Masinter | Internet Standard | January 2005 |
| 3965 | A Simple Mode of Facsimile Using Internet MailK. Toyoda, H. Ohno, J. Murai, D. Wing | Draft Standard | December 2004 |
| 3922 | Mapping the Extensible Messaging and Presence Protocol (XMPP) to Common Presence and Instant Messaging (CPIM)P. Saint-Andre | Proposed Standard | October 2004 |
| 3910 | The SPIRITS (Services in PSTN requesting Internet Services) ProtocolV. Gurbani, Ed., A. Brusilovsky, I. Faynberg, J. Gato, H. Lu, M. Unmehopa | Proposed Standard | October 2004 |
| 3875 | The Common Gateway Interface (CGI) Version 1.1D. Robinson, K. Coar | Informational | October 2004 |
| 3864 | Registration Procedures for Message Header FieldsG. Klyne, M. Nottingham, J. Mogul | Best Current Practice | September 2004 |
| 3862 | Common Presence and Instant Messaging (CPIM): Message FormatG. Klyne, D. Atkins | Proposed Standard | August 2004 |
| 3842 | A Message Summary and Message Waiting Indication Event Package for the Session Initiation Protocol (SIP)R. Mahy | Proposed Standard | August 2004 |
| 3801 | Voice Profile for Internet Mail - version 2 (VPIMv2)G. Vaudreuil, G. Parsons | Draft Standard | June 2004 |
| 3795 | Survey of IPv4 Addresses in Currently Deployed IETF Application Area Standards Track and Experimental DocumentsR. Sofia, P. Nesser, II | Informational | June 2004 |
| 3709 | Internet X.509 Public Key Infrastructure: Logotypes in X.509 CertificatesS. Santesson, R. Housley, T. Freeman · obsoleted by RFC 9399 | Proposed Standard | February 2004 |
| 3676 | The Text/Plain Format and DelSp ParametersR. Gellens | Proposed Standard | February 2004 |
| 3501 | INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1M. Crispin · obsoleted by RFC 9051 | Proposed Standard | March 2003 |
| 3462 | The Multipart/Report Content Type for the Reporting of Mail System Administrative MessagesG. Vaudreuil · obsoleted by RFC 6522 | Draft Standard | January 2003 |
| 3459 | Critical Content Multi-purpose Internet Mail Extensions (MIME) ParameterE. Burger | Proposed Standard | January 2003 |
| 3420 | Internet Media Type message/sipfragR. Sparks | Proposed Standard | November 2002 |
| 3398 | Integrated Services Digital Network (ISDN) User Part (ISUP) to Session Initiation Protocol (SIP) MappingG. Camarillo, A. B. Roach, J. Peterson, L. Ong | Proposed Standard | December 2002 |
| 3391 | The MIME Application/Vnd.pwg-multiplexed Content-TypeR. Herriot | Informational | December 2002 |
| 3335 | MIME-based Secure Peer-to-Peer Business Data Interchange over the InternetT. Harding, R. Drummond, C. Shih | Proposed Standard | September 2002 |
| 3298 | Service in the Public Switched Telephone Network/Intelligent Network (PSTN/IN) Requesting InTernet Service (SPIRITS) Protocol RequirementsI. Faynberg, J. Gato, H. Lu, L. Slutsman | Informational | September 2002 |
| 3297 | Content Negotiation for Messaging Services based on EmailG. Klyne, R. Iwazaki, D. Crocker | Proposed Standard | July 2002 |
| 3282 | Content Language HeadersH. Alvestrand | Draft Standard | May 2002 |
| 3261 | SIP: Session Initiation ProtocolJ. Rosenberg, H. Schulzrinne, G. Camarillo, A. Johnston, J. Peterson, R. Sparks, M. Handley, E. Schooler | Proposed Standard | July 2002 |
| 3249 | Implementers Guide for Facsimile Using Internet MailV. Cancio, M. Moldovan, H. Tamura, D. Wing | Informational | September 2002 |
| 3236 | The 'application/xhtml+xml' Media TypeM. Baker, P. Stark | Informational | January 2002 |
| 3205 | On the use of HTTP as a SubstrateK. Moore · obsoleted by RFC 9205 | Best Current Practice | February 2002 |
| 3204 | MIME media types for ISUP and QSIG ObjectsE. Zimmerer, J. Peterson, A. Vemuri, L. Ong, F. Audet, M. Watson, M. Zonoun | Proposed Standard | December 2001 |
| 3195 | Reliable Delivery for syslogD. New, M. Rose | Proposed Standard | November 2001 |
| 3156 | MIME Security with OpenPGPM. Elkins, D. Del Torto, R. Levien, T. Roessler | Proposed Standard | August 2001 |
| 3053 | IPv6 Tunnel BrokerA. Durand, P. Fasano, I. Guardini, D. Lento | Informational | January 2001 |
| 3050 | Common Gateway Interface for SIPJ. Lennox, H. Schulzrinne, J. Rosenberg | Informational | January 2001 |
| 3023 | XML Media TypesM. Murata, S. St. Laurent, D. Kohn · obsoleted by RFC 7303 | Proposed Standard | January 2001 |
| 2978 | IANA Charset Registration ProceduresN. Freed, J. Postel | Best Current Practice | October 2000 |
| 2967 | TISDAG - Technical Infrastructure for Swedish Directory Access GatewaysL. Daigle, R. Hedberg | Informational | October 2000 |
| 2958 | The application/whoispp-response Content-typeL. Daigle, P. Faltstrom | Informational | October 2000 |
| 2957 | The application/whoispp-query Content-TypeL. Daigle, P. Faltstrom | Informational | October 2000 |
| 2936 | HTTP MIME Type Handler DetectionD. Eastlake 3rd, C. Smith, D. Soroka | Informational | September 2000 |
| 2913 | MIME Content Types in Media Feature ExpressionsG. Klyne | Proposed Standard | September 2000 |
| 2911 | Internet Printing Protocol/1.1: Model and SemanticsT. Hastings, Ed., R. Herriot, R. deBry, S. Isaacson, P. Powell · obsoleted by RFC 8011 | Proposed Standard | September 2000 |
| 2910 | Internet Printing Protocol/1.1: Encoding and TransportR. Herriot, Ed., S. Butler, P. Moore, R. Turner, J. Wenn · obsoleted by RFC 8010 | Proposed Standard | September 2000 |
| 2854 | The 'text/html' Media TypeD. Connolly, L. Masinter | Informational | June 2000 |
| 2848 | The PINT Service Protocol: Extensions to SIP and SDP for IP Access to Telephone Call ServicesS. Petrack, L. Conroy | Proposed Standard | June 2000 |
| 2822 | Internet Message FormatP. Resnick, Ed. · obsoleted by RFC 5322 | Proposed Standard | April 2001 |
| 2802 | Digital Signatures for the v1.0 Internet Open Trading Protocol (IOTP)K. Davidson, Y. Kawatsura | Informational | April 2000 |
| 2801 | Internet Open Trading Protocol - IOTP Version 1.0D. Burdett | Informational | April 2000 |
| 2774 | An HTTP Extension FrameworkH. Nielsen, P. Leach, S. Lawrence | Historic | February 2000 |
| 2703 | Protocol-independent Content Negotiation FrameworkG. Klyne | Informational | September 1999 |
| 2693 | SPKI Certificate TheoryC. Ellison, B. Frantz, B. Lampson, R. Rivest, B. Thomas, T. Ylonen | Experimental | September 1999 |
| 2652 | MIME Object Definitions for the Common Indexing Protocol (CIP)J. Allen, M. Mealling | Proposed Standard | August 1999 |
| 2646 | The Text/Plain Format ParameterR. Gellens, Ed. · obsoleted by RFC 3676 | Proposed Standard | August 1999 |
| 2633 | S/MIME Version 3 Message SpecificationB. Ramsdell, Ed. · obsoleted by RFC 3851 | Proposed Standard | June 1999 |
| 2616 | Hypertext Transfer Protocol -- HTTP/1.1R. Fielding, J. Gettys, J. Mogul, H. Frystyk, L. Masinter, P. Leach, T. Berners-Lee · obsoleted by RFC 7230, RFC 7231, RFC 7232, RFC 7233, RFC 7234, RFC 7235 | Draft Standard | June 1999 |
| 2566 | Internet Printing Protocol/1.0: Model and SemanticsR. deBry, T. Hastings, R. Herriot, S. Isaacson, P. Powell · obsoleted by RFC 2911 | Experimental | April 1999 |
| 2565 | Internet Printing Protocol/1.0: Encoding and TransportR. Herriot, Ed., S. Butler, P. Moore, R. Turner · obsoleted by RFC 2910 | Experimental | April 1999 |
| 2552 | Architecture for the Information Brokerage in the ACTS Project GAIAM. Blinov, M. Bessonov, C. Clissmann | Informational | April 1999 |
| 2480 | Gateways and MIME Security MultipartsN. Freed | Proposed Standard | January 1999 |
| 2447 | iCalendar Message-Based Interoperability Protocol (iMIP)F. Dawson, S. Mansour, S. Silverberg · obsoleted by RFC 6047 | Proposed Standard | November 1998 |
| 2445 | Internet Calendaring and Scheduling Core Object Specification (iCalendar)F. Dawson, D. Stenerson · obsoleted by RFC 5545 | Proposed Standard | November 1998 |
| 2442 | The Batch SMTP Media TypeN. Freed, D. Newman, J. Belissent, M. Hoy | Informational | November 1998 |
| 2426 | vCard MIME Directory ProfileF. Dawson, T. Howes · obsoleted by RFC 6350 | Proposed Standard | September 1998 |
| 2425 | A MIME Content-Type for Directory InformationT. Howes, M. Smith, F. Dawson · obsoleted by RFC 6350 | Proposed Standard | September 1998 |
| 2424 | Content Duration MIME Header DefinitionG. Vaudreuil, G. Parsons · obsoleted by RFC 3803 | Proposed Standard | September 1998 |
| 2423 | VPIM Voice Message MIME Sub-type RegistrationG. Vaudreuil, G. Parsons · obsoleted by RFC 3801 | Proposed Standard | September 1998 |
| 2421 | Voice Profile for Internet Mail - version 2G. Vaudreuil, G. Parsons · obsoleted by RFC 3801 | Proposed Standard | September 1998 |
| 2396 | Uniform Resource Identifiers (URI): Generic SyntaxT. Berners-Lee, R. Fielding, L. Masinter · obsoleted by RFC 3986 | Draft Standard | August 1998 |
| 2388 | Returning Values from Forms: multipart/form-dataL. Masinter · obsoleted by RFC 7578 | Proposed Standard | August 1998 |
| 2376 | XML Media TypesE. Whitehead, M. Murata · obsoleted by RFC 3023 | Informational | July 1998 |
| 2346 | Making Postscript and PDF InternationalJ. Palme | Informational | May 1998 |
| 2311 | S/MIME Version 2 Message SpecificationS. Dusse, P. Hoffman, B. Ramsdell, L. Lundblade, L. Repka | Historic | March 1998 |
| 2305 | A Simple Mode of Facsimile Using Internet MailK. Toyoda, H. Ohno, J. Murai, D. Wing · obsoleted by RFC 3965 | Proposed Standard | March 1998 |
| 2299 | Request for Comments SummaryA. Ramos | Informational | January 1999 |
| 2298 | An Extensible Message Format for Message Disposition NotificationsR. Fajman · obsoleted by RFC 3798 | Proposed Standard | March 1998 |
| 2279 | UTF-8, a transformation format of ISO 10646F. Yergeau · obsoleted by RFC 3629 | Draft Standard | January 1998 |
| 2278 | IANA Charset Registration ProceduresN. Freed, J. Postel · obsoleted by RFC 2978 | Informational | January 1998 |
| 2237 | Japanese Character Encoding for Internet MessagesK. Tamaru | Informational | November 1997 |
| 2231 | MIME Parameter Value and Encoded Word Extensions: Character Sets, Languages, and ContinuationsN. Freed, K. Moore | Proposed Standard | November 1997 |
| 2199 | Request for Comments Summary RFC Numbers 2100-2199A. Ramos | Informational | January 1998 |
| 2184 | MIME Parameter Value and Encoded Word Extensions: Character Sets, Languages, and ContinuationsN. Freed, K. Moore · obsoleted by RFC 2231 | Proposed Standard | August 1997 |
| 2183 | Communicating Presentation Information in Internet Messages: The Content-Disposition Header FieldR. Troost, S. Dorner, K. Moore, Ed. | Proposed Standard | August 1997 |
| 2160 | Carrying PostScript in X.400 and MIMEH. Alvestrand | Proposed Standard | January 1998 |
| 2157 | Mapping between X.400 and RFC-822/MIME Message BodiesH. Alvestrand | Proposed Standard | January 1998 |
| 2130 | The Report of the IAB Character Set Workshop held 29 February - 1 March, 1996C. Weider, C. Preston, K. Simonsen, H. Alvestrand, R. Atkinson, M. Crispin, P. Svanberg | Informational | April 1997 |
| 2110 | MIME E-mail Encapsulation of Aggregate Documents, such as HTML (MHTML)J. Palme, A. Hopmann · obsoleted by RFC 2557 | Proposed Standard | March 1997 |
| 2060 | Internet Message Access Protocol - Version 4rev1M. Crispin · obsoleted by RFC 3501 | Proposed Standard | December 1996 |
| 2049 | Multipurpose Internet Mail Extensions (MIME) Part Five: Conformance Criteria and ExamplesN. Freed, N. Borenstein | Draft Standard | November 1996 |
| 2048 | Multipurpose Internet Mail Extensions (MIME) Part Four: Registration ProceduresN. Freed, J. Klensin, J. Postel · obsoleted by RFC 4288, RFC 4289 | Best Current Practice | November 1996 |
| 2047 | MIME (Multipurpose Internet Mail Extensions) Part Three: Message Header Extensions for Non-ASCII TextK. Moore | Draft Standard | November 1996 |
| 2045 | Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message BodiesN. Freed, N. Borenstein | Draft Standard | November 1996 |
| 1849 | "Son of 1036": News Article Format and TransmissionH. Spencer · obsoleted by RFC 5536, RFC 5537 | Historic | March 2010 |