| 6530 | Overview and Framework for Internationalized EmailJ. Klensin, Y. Ko | Proposed Standard | February 2012 |
| 6055 | IAB Thoughts on Encodings for Internationalized Domain NamesD. Thaler, J. Klensin, S. Cheshire | Informational | February 2011 |
| 5598 | Internet Mail ArchitectureD. Crocker | Informational | July 2009 |
| 5321 | Simple Mail Transfer ProtocolJ. Klensin | Draft Standard | October 2008 |
| 5068 | Email Submission Operations: Access and Accountability RequirementsC. Hutzler, D. Crocker, P. Resnick, E. Allman, T. Finch | Best Current Practice | November 2007 |
| 5000 | Internet Official Protocol StandardsRFC Editor · obsoleted by RFC 7100 | Historic | May 2008 |
| 4949 | Internet Security Glossary, Version 2R. Shirey | Informational | August 2007 |
| 4409 | Message Submission for MailR. Gellens, J. Klensin · obsoleted by RFC 6409 | Draft Standard | April 2006 |
| 4282 | The Network Access IdentifierB. Aboba, M. Beadles, J. Arkko, P. Eronen · obsoleted by RFC 7542 | Proposed Standard | December 2005 |
| 3965 | A Simple Mode of Facsimile Using Internet MailK. Toyoda, H. Ohno, J. Murai, D. Wing | Draft Standard | December 2004 |
| 3848 | ESMTP and LMTP Transmission Types RegistrationC. Newman | Draft Standard | July 2004 |
| 3552 | Guidelines for Writing RFC Text on Security ConsiderationsE. Rescorla, B. Korver | Best Current Practice | July 2003 |
| 3501 | INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1M. Crispin · obsoleted by RFC 9051 | Proposed Standard | March 2003 |
| 3461 | Simple Mail Transfer Protocol (SMTP) Service Extension for Delivery Status Notifications (DSNs)K. Moore | Draft Standard | January 2003 |
| 3435 | Media Gateway Control Protocol (MGCP) Version 1.0F. Andreasen, B. Foster | Informational | January 2003 |
| 3335 | MIME-based Secure Peer-to-Peer Business Data Interchange over the InternetT. Harding, R. Drummond, C. Shih | Proposed Standard | September 2002 |
| 3249 | Implementers Guide for Facsimile Using Internet MailV. Cancio, M. Moldovan, H. Tamura, D. Wing | Informational | September 2002 |
| 3207 | SMTP Service Extension for Secure SMTP over Transport Layer SecurityP. Hoffman | Proposed Standard | February 2002 |
| 3192 | Minimal FAX address format in Internet MailC. Allocchio | Draft Standard | October 2001 |
| 3191 | Minimal GSTN address format in Internet MailC. Allocchio | Draft Standard | October 2001 |
| 3117 | On the Design of Application ProtocolsM. Rose | Informational | November 2001 |
| 3030 | SMTP Service Extensions for Transmission of Large and Binary MIME MessagesG. Vaudreuil | Proposed Standard | December 2000 |
| 3027 | Protocol Complications with the IP Network Address TranslatorM. Holdrege, P. Srisuresh | Informational | January 2001 |
| 3023 | XML Media TypesM. Murata, S. St. Laurent, D. Kohn · obsoleted by RFC 7303 | Proposed Standard | January 2001 |
| 2979 | Behavior of and Requirements for Internet FirewallsN. Freed | Informational | October 2000 |
| 2967 | TISDAG - Technical Infrastructure for Swedish Directory Access GatewaysL. Daigle, R. Hedberg | Informational | October 2000 |
| 2920 | SMTP Service Extension for Command PipeliningN. Freed | Internet Standard | September 2000 |
| 2896 | Remote Network Monitoring MIB Protocol Identifier MacrosA. Bierman, C. Bucci, R. Iddon | Informational | August 2000 |
| 2852 | Deliver By SMTP Service ExtensionD. Newman | Proposed Standard | June 2000 |
| 2825 | A Tangled Web: Issues of I18N, Domain Names, and the Other Internet protocolsIAB, L. Daigle, Ed. | Informational | May 2000 |
| 2821 | Simple Mail Transfer ProtocolJ. Klensin, Ed. · obsoleted by RFC 5321 | Proposed Standard | April 2001 |
| 2705 | Media Gateway Control Protocol (MGCP) Version 1.0M. Arango, A. Dugan, I. Elliott, C. Huitema, S. Pickett · obsoleted by RFC 3435 | Informational | October 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 |
| 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 |
| 2557 | MIME Encapsulation of Aggregate Documents, such as HTML (MHTML)J. Palme, A. Hopmann, N. Shelness | Proposed Standard | March 1999 |
| 2554 | SMTP Service Extension for AuthenticationJ. Myers · obsoleted by RFC 4954 | Proposed Standard | March 1999 |
| 2552 | Architecture for the Information Brokerage in the ACTS Project GAIAM. Blinov, M. Bessonov, C. Clissmann | Informational | April 1999 |
| 2505 | Anti-Spam Recommendations for SMTP MTAsG. Lindberg | Best Current Practice | February 1999 |
| 2487 | SMTP Service Extension for Secure SMTP over TLSP. Hoffman · obsoleted by RFC 3207 | Proposed Standard | January 1999 |
| 2486 | The Network Access IdentifierB. Aboba, M. Beadles · obsoleted by RFC 4282 | Proposed Standard | January 1999 |
| 2476 | Message SubmissionR. Gellens, J. Klensin · obsoleted by RFC 4409 | Proposed Standard | December 1998 |
| 2442 | The Batch SMTP Media TypeN. Freed, D. Newman, J. Belissent, M. Hoy | Informational | November 1998 |
| 2421 | Voice Profile for Internet Mail - version 2G. Vaudreuil, G. Parsons · obsoleted by RFC 3801 | Proposed Standard | September 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 |
| 2304 | Minimal FAX address format in Internet MailC. Allocchio · obsoleted by RFC 3192 | Proposed Standard | March 1998 |
| 2303 | Minimal PSTN address format in Internet MailC. Allocchio · obsoleted by RFC 3191 | Proposed Standard | March 1998 |
| 2298 | An Extensible Message Format for Message Disposition NotificationsR. Fajman · obsoleted by RFC 3798 | Proposed Standard | March 1998 |
| 2259 | Simple Nomenclator Query Protocol (SNQP)J. Elliott, J. Ordille | Informational | January 1998 |
| 2229 | A Dictionary Server ProtocolR. Faith, B. Martin | Informational | October 1997 |
| 2219 | Use of DNS Aliases for Network ServicesM. Hamilton, R. Wright | Best Current Practice | October 1997 |
| 2197 | SMTP Service Extension for Command PipeliningN. Freed · obsoleted by RFC 2920 | Draft Standard | September 1997 |
| 2167 | Referral Whois (RWhois) Protocol V1.5S. Williamson, M. Kosters, D. Blacka, J. Singh, K. Zeilstra | Informational | June 1997 |
| 2156 | MIXER (Mime Internet X.400 Enhanced Relay): Mapping between X.400 and RFC 822/MIMES. Kille | Proposed Standard | January 1998 |
| 2150 | Humanities and Arts: Sharing Center Stage on the InternetJ. Max, W. Stickle | Informational | October 1997 |
| 2142 | Mailbox Names for Common Services, Roles and FunctionsD. Crocker | Proposed Standard | May 1997 |
| 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 |
| 2099 | Request for Comments Summary RFC Numbers 2000-2099J. Elliott | Informational | March 1997 |
| 2076 | Common Internet Message HeadersJ. Palme | Informational | February 1997 |
| 2074 | Remote Network Monitoring MIB Protocol IdentifiersA. Bierman, R. Iddon · obsoleted by RFC 2895 | Proposed Standard | January 1997 |
| 2068 | Hypertext Transfer Protocol -- HTTP/1.1R. Fielding, J. Gettys, J. Mogul, H. Frystyk, T. Berners-Lee · obsoleted by RFC 2616 | Proposed Standard | January 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 |
| 2046 | Multipurpose Internet Mail Extensions (MIME) Part Two: Media TypesN. Freed, N. Borenstein | Draft Standard | November 1996 |
| 2045 | Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message BodiesN. Freed, N. Borenstein | Draft Standard | November 1996 |
| 2034 | SMTP Service Extension for Returning Enhanced Error CodesN. Freed | Proposed Standard | October 1996 |
| 2033 | Local Mail Transfer ProtocolJ. Myers | Informational | October 1996 |
| 1983 | Internet Users' GlossaryG. Malkin, Ed. | Informational | August 1996 |
| 1945 | Hypertext Transfer Protocol -- HTTP/1.0T. Berners-Lee, R. Fielding, H. Frystyk | Informational | May 1996 |
| 1939 | Post Office Protocol - Version 3J. Myers, M. Rose | Internet Standard | May 1996 |
| 1922 | Chinese Character Encoding for Internet MessagesHF. Zhu, DY. Hu, ZG. Wang, TC. Kao, WCH. Chang, M. Crispin | Informational | March 1996 |
| 1912 | Common DNS Operational and Configuration ErrorsD. Barr | Informational | February 1996 |
| 1911 | Voice Profile for Internet MailG. Vaudreuil · obsoleted by RFC 2421, RFC 2422, RFC 2423 | Experimental | February 1996 |
| 1894 | An Extensible Message Format for Delivery Status NotificationsK. Moore, G. Vaudreuil · obsoleted by RFC 3464 | Proposed Standard | January 1996 |
| 1893 | Enhanced Mail System Status CodesG. Vaudreuil · obsoleted by RFC 3463 | Proposed Standard | January 1996 |
| 1891 | SMTP Service Extension for Delivery Status NotificationsK. Moore · obsoleted by RFC 3461 | Proposed Standard | January 1996 |
| 1870 | SMTP Service Extension for Message Size DeclarationJ. Klensin, N. Freed, K. Moore | Internet Standard | November 1995 |
| 1869 | SMTP Service ExtensionsJ. Klensin, N. Freed, M. Rose, E. Stefferud, D. Crocker · obsoleted by RFC 2821 | Internet Standard | November 1995 |
| 1861 | Simple Network Paging Protocol - Version 3 -Two-Way EnhancedA. Gwinn | Informational | October 1995 |
| 1854 | SMTP Service Extension for Command PipeliningN. Freed · obsoleted by RFC 2197 | Proposed Standard | October 1995 |
| 1849 | "Son of 1036": News Article Format and TransmissionH. Spencer · obsoleted by RFC 5536, RFC 5537 | Historic | March 2010 |
| 1846 | SMTP 521 Reply CodeA. Durand, F. Dupont | Experimental | September 1995 |
| 1845 | SMTP Service Extension for Checkpoint/RestartD. Crocker, N. Freed, A. Cargille | Experimental | September 1995 |
| 1835 | Architecture of the WHOIS++ serviceP. Deutsch, R. Schoultz, P. Faltstrom, C. Weider | Historic | August 1995 |
| 1830 | SMTP Service Extensions for Transmission of Large and Binary MIME MessagesG. Vaudreuil · obsoleted by RFC 3030 | Experimental | August 1995 |
| 1767 | MIME Encapsulation of EDI ObjectsD. Crocker | Proposed Standard | March 1995 |
| 1730 | Internet Message Access Protocol - Version 4M. Crispin · obsoleted by RFC 2060, RFC 2061 | Proposed Standard | December 1994 |
| 1725 | Post Office Protocol - Version 3J. Myers, M. Rose · obsoleted by RFC 1939 | Internet Standard | November 1994 |
| 1711 | Classifications in E-mail RoutingJ. Houttuin | Informational | October 1994 |
| 1700 | Assigned NumbersJ. Reynolds, J. Postel · obsoleted by RFC 3232 | Historic | October 1994 |
| 1653 | SMTP Service Extension for Message Size DeclarationJ. Klensin, N. Freed, K. Moore · obsoleted by RFC 1870 | Draft Standard | July 1994 |
| 1652 | SMTP Service Extension for 8bit-MIMEtransportJ. Klensin, N. Freed, M. Rose, E. Stefferud, D. Crocker · obsoleted by RFC 6152 | Draft Standard | July 1994 |
| 1651 | SMTP Service ExtensionsJ. Klensin, N. Freed, M. Rose, E. Stefferud, D. Crocker · obsoleted by RFC 1869 | Draft Standard | July 1994 |
| 1645 | Simple Network Paging Protocol - Version 2A. Gwinn · obsoleted by RFC 1861 | Informational | July 1994 |
| 1616 | X.400(1988) for the Academic and Research Community in EuropeRARE WG-MSG Task Force 88, E. Huizer, Ed., J. Romaguera, Ed. | Informational | May 1994 |
| 1594 | FYI on Questions and Answers - Answers to Commonly asked "New Internet User" QuestionsA. Marine, J. Reynolds, G. Malkin · obsoleted by RFC 2664 | Informational | March 1994 |
| 1568 | Simple Network Paging Protocol - Version 1(b)A. Gwinn · obsoleted by RFC 1645 | Informational | January 1994 |
| 1524 | A User Agent Configuration Mechanism For Multimedia Mail Format InformationN. Borenstein | Informational | September 1993 |
| 1521 | MIME (Multipurpose Internet Mail Extensions) Part One: Mechanisms for Specifying and Describing the Format of Internet Message BodiesN. Borenstein, N. Freed · obsoleted by RFC 2045, RFC 2046, RFC 2047, RFC 2048, RFC 2049 | Draft Standard | September 1993 |
| 1506 | A Tutorial on Gatewaying between X.400 and Internet MailJ. Houttuin | Informational | August 1993 |
| 1505 | Encoding Header Field for Internet MessagesA. Costanzo, D. Robinson, R. Ullmann | Experimental | August 1993 |
| 1492 | An Access Control Protocol, Sometimes Called TACACSC. Finseth | Informational | July 1993 |
| 1460 | Post Office Protocol - Version 3M. Rose · obsoleted by RFC 1725 | Draft Standard | June 1993 |
| 1440 | SIFT/UFT: Sender-Initiated/Unsolicited File TransferR. Troth | Experimental | July 1993 |
| 1428 | Transition of Internet Mail from Just-Send-8 to 8bit-SMTP/MIMEG. Vaudreuil | Informational | February 1993 |
| 1427 | SMTP Service Extension for Message Size DeclarationJ. Klensin, N. Freed, Ed., K. Moore · obsoleted by RFC 1653 | Proposed Standard | February 1993 |
| 1426 | SMTP Service Extension for 8bit-MIMEtransportJ. Klensin, N. Freed, Ed., M. Rose, E. Stefferud, D. Crocker · obsoleted by RFC 1652 | Proposed Standard | February 1993 |
| 1425 | SMTP Service ExtensionsJ. Klensin, N. Freed, Ed., M. Rose, E. Stefferud, D. Crocker · obsoleted by RFC 1651 | Proposed Standard | February 1993 |
| 1421 | Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication ProceduresJ. Linn | Historic | February 1993 |
| 1392 | Internet Users' GlossaryG. Malkin, T. LaQuey Parker · obsoleted by RFC 1983 | Informational | January 1993 |
| 1343 | A User Agent Configuration Mechanism for Multimedia Mail Format InformationN. Borenstein | Informational | June 1992 |
| 1341 | MIME (Multipurpose Internet Mail Extensions): Mechanisms for Specifying and Describing the Format of Internet Message BodiesN. Borenstein, N. Freed · obsoleted by RFC 1521 | Proposed Standard | June 1992 |
| 1340 | Assigned NumbersJ. Reynolds, J. Postel · obsoleted by RFC 1700 | Historic | July 1992 |
| 1327 | Mapping between X.400(1988) / ISO 10021 and RFC 822S. Hardcastle-Kille · obsoleted by RFC 2156 | Proposed Standard | May 1992 |
| 1325 | FYI on Questions and Answers Answers to Commonly asked "New Internet User" QuestionsG. Malkin, A. Marine · obsoleted by RFC 1594 | Informational | May 1992 |
| 1225 | Post Office Protocol: Version 3M.T. Rose · obsoleted by RFC 1460 | Draft Standard | May 1991 |
| 1208 | A Glossary of Networking TermsO.J. Jacobsen, D.C. Lynch | Informational | March 1991 |
| 1204 | Message Posting Protocol (MPP)S. Yeh, D. Lee | Experimental | February 1991 |
| 1203 | Interactive Mail Access Protocol: Version 3J. Rice | Historic | February 1991 |
| 1176 | Interactive Mail Access Protocol: Version 2M.R. Crispin | Experimental | August 1990 |
| 1175 | FYI on where to start: A bibliography of internetworking informationK.L. Bowers, T.L. LaQuey, J.K. Reynolds, K. Roubicek, M.K. Stahl, A. Yuan | Informational | August 1990 |
| 1160 | Internet Activities BoardV. Cerf | Informational | May 1990 |
| 1148 | Mapping between X.400(1988) / ISO 10021 and RFC 822S.E. Kille · obsoleted by RFC 1327, RFC 2156 | Experimental | March 1990 |
| 1138 | Mapping between X.400(1988) / ISO 10021 and RFC 822S.E. Kille · obsoleted by RFC 1327, RFC 2156 | Experimental | December 1989 |
| 1135 | Helminthiasis of the InternetJ.K. Reynolds | Informational | December 1989 |
| 1123 | Requirements for Internet Hosts - Application and SupportR. Braden, Ed. | Internet Standard | October 1989 |
| 1120 | Internet Activities BoardV. Cerf · obsoleted by RFC 1160 | Informational | September 1989 |
| 1118 | Hitchhikers guide to the InternetE. Krol | Informational | September 1989 |
| 1113 | Privacy enhancement for Internet electronic mail: Part I - message encipherment and authentication proceduresJ. Linn · obsoleted by RFC 1421 | Historic | August 1989 |
| 1099 | Request for Comments Summary: RFC Numbers 1000-1099J. Reynolds | Informational | December 1991 |
| 1090 | SMTP on X.25R. Ullmann | Unknown | February 1989 |
| 1081 | Post Office Protocol: Version 3M.T. Rose · obsoleted by RFC 1225 | Unknown | November 1988 |
| 1076 | HEMS monitoring and control languageG. Trewitt, C. Partridge | Unknown | November 1988 |
| 1064 | Interactive Mail Access Protocol: Version 2M.R. Crispin · obsoleted by RFC 1176, RFC 1203 | Unknown | July 1988 |
| 1060 | Assigned numbersJ.K. Reynolds, J. Postel · obsoleted by RFC 1340 | Historic | March 1990 |
| 1047 | Duplicate messages and SMTPC. Partridge | Unknown | February 1988 |
| 1040 | Privacy enhancement for Internet electronic mail: Part I: Message encipherment and authentication proceduresJ. Linn · obsoleted by RFC 1113 | Unknown | January 1988 |
| 1035 | Domain names - implementation and specificationP. Mockapetris | Internet Standard | November 1987 |
| 1034 | Domain names - concepts and facilitiesP. Mockapetris | Internet Standard | November 1987 |
| 1023 | HEMS monitoring and control languageG. Trewitt, C. Partridge · obsoleted by RFC 1076 | Unknown | October 1987 |
| 1012 | Bibliography of Request For Comments 1 through 999J.K. Reynolds, J. Postel | Informational | June 1987 |
| 1011 | Official Internet protocolsJ.K. Reynolds, J. Postel | Unknown | May 1987 |
| 1010 | Assigned numbersJ.K. Reynolds, J. Postel · obsoleted by RFC 1060 | Historic | May 1987 |
| 1000 | Request For Comments reference guideJ.K. Reynolds, J. Postel | Unknown | August 1987 |
| 991 | Official ARPA-Internet protocolsJ.K. Reynolds, J. Postel · obsoleted by RFC 1011 | Unknown | November 1986 |
| 990 | Assigned numbersJ.K. Reynolds, J. Postel · obsoleted by RFC 1010 | Historic | November 1986 |
| 987 | Mapping between X.400 and RFC 822S.E. Kille · obsoleted by RFC 1327, RFC 2156 | Unknown | June 1986 |
| 980 | Protocol document order informationO.J. Jacobsen, J. Postel | Unknown | March 1986 |
| 977 | Network News Transfer ProtocolB. Kantor, P. Lapsley · obsoleted by RFC 3977 | Proposed Standard | February 1986 |
| 976 | UUCP mail interchange format standardM.R. Horton | Unknown | February 1986 |
| 961 | Official ARPA-Internet protocolsJ.K. Reynolds, J. Postel · obsoleted by RFC 991 | Unknown | December 1985 |
| 960 | Assigned numbersJ.K. Reynolds, J. Postel · obsoleted by RFC 990 | Historic | December 1985 |
| 944 | Official ARPA-Internet protocolsJ.K. Reynolds, J. Postel · obsoleted by RFC 961 | Unknown | April 1985 |
| 943 | Assigned numbersJ.K. Reynolds, J. Postel · obsoleted by RFC 960 | Historic | April 1985 |
| 937 | Post Office Protocol: Version 2M. Butler, J. Postel, D. Chase, J. Goldberger, J.K. Reynolds | Historic | February 1985 |
| 934 | Proposed standard for message encapsulationM.T. Rose, E.A. Stefferud | Unknown | January 1985 |
| 924 | Official ARPA-Internet protocols for connecting personal computers to the InternetJ.K. Reynolds, J. Postel · obsoleted by RFC 944 | Unknown | October 1984 |
| 923 | Assigned numbersJ.K. Reynolds, J. Postel · obsoleted by RFC 943 | Historic | October 1984 |
| 918 | Post Office ProtocolJ.K. Reynolds · obsoleted by RFC 937 | Unknown | October 1984 |
| 915 | Network mail path serviceM.A. Elvy, R. Nedved | Unknown | December 1984 |
| 901 | Official ARPA-Internet protocolsJ.K. Reynolds, J. Postel · obsoleted by RFC 924 | Unknown | June 1984 |
| 900 | Assigned NumbersJ.K. Reynolds, J. Postel · obsoleted by RFC 923 | Historic | June 1984 |
| 883 | Domain names: Implementation specificationP. Mockapetris · obsoleted by RFC 1034, RFC 1035 | Unknown | November 1983 |
| 882 | Domain names: Concepts and facilitiesP. Mockapetris · obsoleted by RFC 1034, RFC 1035 | Unknown | November 1983 |
| 880 | Official protocolsJ.K. Reynolds, J. Postel · obsoleted by RFC 901 | Historic | October 1983 |
| 876 | Survey of SMTP implementationsD. Smallberg | Unknown | September 1983 |
| 870 | Assigned numbersJ.K. Reynolds, J. Postel · obsoleted by RFC 900 | Historic | October 1983 |
| 840 | Official protocolsJ. Postel · obsoleted by RFC 880 | Historic | April 1983 |
| 820 | Assigned numbersJ. Postel · obsoleted by RFC 870 | Historic | August 1982 |
| 819 | The Domain Naming Convention for Internet User ApplicationsZ. Su, J. Postel | Unknown | August 1982 |
| 800 | Request For Comments summary notes: 700-799J. Postel, J. Vernon | Informational | November 1982 |