| 822 | STANDARD FOR THE FORMAT OF ARPA INTERNET TEXT MESSAGESD. Crocker · obsoleted by RFC 2822 | Internet Standard | August 1982 |
| 1064 | Interactive Mail Access Protocol: Version 2M.R. Crispin · obsoleted by RFC 1176, RFC 1203 | Unknown | July 1988 |
| 1176 | Interactive Mail Access Protocol: Version 2M.R. Crispin | Experimental | August 1990 |
| 1730 | Internet Message Access Protocol - Version 4M. Crispin · obsoleted by RFC 2060, RFC 2061 | Proposed Standard | December 1994 |
| 1732 | IMAP4 Compatibility with IMAP2 and IMAP2bisM. Crispin | Informational | December 1994 |
| 1733 | Distributed Electronic Mail Models in IMAP4M. Crispin | Informational | December 1994 |
| 1864 | The Content-MD5 Header FieldJ. Myers, M. Rose | Draft Standard | October 1995 |
| 2045 | Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message BodiesN. Freed, N. Borenstein | Draft Standard | November 1996 |
| 2046 | Multipurpose Internet Mail Extensions (MIME) Part Two: Media TypesN. Freed, N. Borenstein | Draft Standard | November 1996 |
| 2047 | MIME (Multipurpose Internet Mail Extensions) Part Three: Message Header Extensions for Non-ASCII TextK. Moore | Draft Standard | November 1996 |
| 2060 | Internet Message Access Protocol - Version 4rev1M. Crispin · obsoleted by RFC 3501 | Proposed Standard | December 1996 |
| 2061 | IMAP4 Compatibility with IMAP2bisM. Crispin | Informational | December 1996 |
| 2062 | Internet Message Access Protocol - Obsolete SyntaxM. Crispin | Informational | December 1996 |
| 2077 | The Model Primary Content Type for Multipurpose Internet Mail ExtensionsS. Nelson, C. Parks, Mitra | Proposed Standard | January 1997 |
| 2087 | IMAP4 QUOTA extensionJ. Myers · obsoleted by RFC 9208 | Proposed Standard | January 1997 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2152 | UTF-7 A Mail-Safe Transformation Format of UnicodeD. Goldsmith, M. Davis | Informational | May 1997 |
| 2177 | IMAP4 IDLE commandB. Leiba | Proposed Standard | June 1997 |
| 2180 | IMAP4 Multi-Accessed Mailbox PracticeM. Gahrns | Informational | July 1997 |
| 2183 | Communicating Presentation Information in Internet Messages: The Content-Disposition Header FieldR. Troost, S. Dorner, K. Moore, Ed. | Proposed Standard | August 1997 |
| 2193 | IMAP4 Mailbox ReferralsM. Gahrns | Proposed Standard | September 1997 |
| 2231 | MIME Parameter Value and Encoded Word Extensions: Character Sets, Languages, and ContinuationsN. Freed, K. Moore | Proposed Standard | November 1997 |
| 2244 | ACAP -- Application Configuration Access ProtocolC. Newman, J. G. Myers | Proposed Standard | November 1997 |
| 2342 | IMAP4 NamespaceM. Gahrns, C. Newman | Proposed Standard | May 1998 |
| 2557 | MIME Encapsulation of Aggregate Documents, such as HTML (MHTML)J. Palme, A. Hopmann, N. Shelness | Proposed Standard | March 1999 |
| 2595 | Using TLS with IMAP, POP3 and ACAPC. Newman | Proposed Standard | June 1999 |
| 2683 | IMAP4 Implementation RecommendationsB. Leiba | Informational | September 1999 |
| 2978 | IANA Charset Registration ProceduresN. Freed, J. Postel | Best Current Practice | October 2000 |
| 3282 | Content Language HeadersH. Alvestrand | Draft Standard | May 2002 |
| 3348 | The Internet Message Action Protocol (IMAP4) Child Mailbox ExtensionM. Gahrns, R. Cheng | Informational | July 2002 |
| 3501 | INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1M. Crispin · obsoleted by RFC 9051 | Proposed Standard | March 2003 |
| 3502 | Internet Message Access Protocol (IMAP) - MULTIAPPEND ExtensionM. Crispin | Proposed Standard | March 2003 |
| 3503 | Message Disposition Notification (MDN) profile for Internet Message Access Protocol (IMAP)A. Melnikov | Proposed Standard | March 2003 |
| 3516 | IMAP4 Binary Content ExtensionL. Nerenberg | Proposed Standard | April 2003 |
| 3629 | UTF-8, a transformation format of ISO 10646F. Yergeau | Internet Standard | November 2003 |
| 3691 | Internet Message Access Protocol (IMAP) UNSELECT commandA. Melnikov | Proposed Standard | February 2004 |
| 4314 | IMAP4 Access Control List (ACL) ExtensionA. Melnikov | Proposed Standard | December 2005 |
| 4315 | Internet Message Access Protocol (IMAP) - UIDPLUS extensionM. Crispin | Proposed Standard | December 2005 |
| 4422 | Simple Authentication and Security Layer (SASL)A. Melnikov, Ed., K. Zeilenga, Ed. | Proposed Standard | June 2006 |
| 4466 | Collected Extensions to IMAP4 ABNFA. Melnikov, C. Daboo | Proposed Standard | April 2006 |
| 4505 | Anonymous Simple Authentication and Security Layer (SASL) MechanismK. Zeilenga | Proposed Standard | June 2006 |
| 4549 | Synchronization Operations for Disconnected IMAP4 ClientsA. Melnikov, Ed. | Informational | June 2006 |
| 4616 | The PLAIN Simple Authentication and Security Layer (SASL) MechanismK. Zeilenga, Ed. | Proposed Standard | August 2006 |
| 4648 | The Base16, Base32, and Base64 Data EncodingsS. Josefsson | Proposed Standard | October 2006 |
| 4731 | IMAP4 Extension to SEARCH Command for Controlling What Kind of Information Is ReturnedA. Melnikov, D. Cridland | Proposed Standard | November 2006 |
| 4752 | The Kerberos V5 ("GSSAPI") Simple Authentication and Security Layer (SASL) MechanismA. Melnikov, Ed. | Proposed Standard | November 2006 |
| 4959 | IMAP Extension for Simple Authentication and Security Layer (SASL) Initial Client ResponseR. Siemborski, A. Gulbrandsen | Proposed Standard | September 2007 |
| 5092 | IMAP URL SchemeA. Melnikov, Ed., C. Newman | Proposed Standard | November 2007 |
| 5161 | The IMAP ENABLE ExtensionA. Gulbrandsen, Ed., A. Melnikov, Ed. | Proposed Standard | March 2008 |
| 5182 | IMAP Extension for Referencing the Last SEARCH ResultA. Melnikov | Proposed Standard | March 2008 |
| 5198 | Unicode Format for Network InterchangeJ. Klensin, M. Padlipsky | Proposed Standard | March 2008 |
| 5234 | Augmented BNF for Syntax Specifications: ABNFD. Crocker, Ed., P. Overell | Internet Standard | January 2008 |
| 5246 | The Transport Layer Security (TLS) Protocol Version 1.2T. Dierks, E. Rescorla · obsoleted by RFC 8446, RFC 9846 | Proposed Standard | August 2008 |
| 5255 | Internet Message Access Protocol InternationalizationC. Newman, A. Gulbrandsen, A. Melnikov | Proposed Standard | June 2008 |
| 5256 | Internet Message Access Protocol - SORT and THREAD ExtensionsM. Crispin, K. Murchison | Proposed Standard | June 2008 |
| 5258 | Internet Message Access Protocol version 4 - LIST Command ExtensionsB. Leiba, A. Melnikov | Proposed Standard | June 2008 |
| 5321 | Simple Mail Transfer ProtocolJ. Klensin | Draft Standard | October 2008 |
| 5322 | Internet Message FormatP. Resnick, Ed. | Draft Standard | October 2008 |
| 5465 | The IMAP NOTIFY ExtensionA. Gulbrandsen, C. King, A. Melnikov | Proposed Standard | February 2009 |
| 5530 | IMAP Response CodesA. Gulbrandsen | Proposed Standard | May 2009 |
| 5788 | IMAP4 Keyword RegistryA. Melnikov, D. Cridland | Proposed Standard | March 2010 |
| 5819 | IMAP4 Extension for Returning STATUS Information in Extended LISTA. Melnikov, T. Sirainen | Proposed Standard | March 2010 |
| 6151 | Updated Security Considerations for the MD5 Message-Digest and the HMAC-MD5 AlgorithmsS. Turner, L. Chen | Informational | March 2011 |
| 6154 | IMAP LIST Extension for Special-Use MailboxesB. Leiba, J. Nicolson | Proposed Standard | March 2011 |
| 6186 | Use of SRV Records for Locating Email Submission/Access ServicesC. Daboo | Proposed Standard | March 2011 |
| 6376 | DomainKeys Identified Mail (DKIM) SignaturesD. Crocker, Ed., T. Hansen, Ed., M. Kucherawy, Ed. | Internet Standard | September 2011 |
| 6409 | Message Submission for MailR. Gellens, J. Klensin | Internet Standard | November 2011 |
| 6532 | Internationalized Email HeadersA. Yang, S. Steele, N. Freed | Proposed Standard | February 2012 |
| 6648 | Deprecating the "X-" Prefix and Similar Constructs in Application ProtocolsP. Saint-Andre, D. Crocker, M. Nottingham | Best Current Practice | June 2012 |
| 6851 | Internet Message Access Protocol (IMAP) - MOVE ExtensionA. Gulbrandsen, N. Freed, Ed. | Proposed Standard | January 2013 |
| 6855 | IMAP Support for UTF-8P. Resnick, Ed., C. Newman, Ed., S. Shen, Ed. · obsoleted by RFC 9755 | Proposed Standard | March 2013 |
| 7162 | IMAP Extensions: Quick Flag Changes Resynchronization (CONDSTORE) and Quick Mailbox Resynchronization (QRESYNC)A. Melnikov, D. Cridland | Proposed Standard | May 2014 |
| 7525 | Recommendations for Secure Use of Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)Y. Sheffer, R. Holz, P. Saint-Andre · obsoleted by RFC 9325 | Best Current Practice | May 2015 |
| 7677 | SCRAM-SHA-256 and SCRAM-SHA-256-PLUS Simple Authentication and Security Layer (SASL) MechanismsT. Hansen | Proposed Standard | November 2015 |
| 7817 | Updated Transport Layer Security (TLS) Server Identity Check Procedure for Email-Related ProtocolsA. Melnikov | Proposed Standard | March 2016 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 7888 | IMAP4 Non-synchronizing LiteralsA. Melnikov, Ed. | Proposed Standard | May 2016 |
| 8081 | The "font" Top-Level Media TypeC. Lilley | Proposed Standard | February 2017 |
| 8098 | Message Disposition NotificationT. Hansen, Ed., A. Melnikov, Ed. | Internet Standard | February 2017 |
| 8126 | Guidelines for Writing an IANA Considerations Section in RFCsM. Cotton, B. Leiba, T. Narten | Best Current Practice | June 2017 |
| 8174 | Ambiguity of Uppercase vs Lowercase in RFC 2119 Key WordsB. Leiba | Best Current Practice | May 2017 |
| 8305 | Happy Eyeballs Version 2: Better Connectivity Using ConcurrencyD. Schinazi, T. Pauly | Proposed Standard | December 2017 |
| 8314 | Cleartext Considered Obsolete: Use of Transport Layer Security (TLS) for Email Submission and AccessK. Moore, C. Newman | Proposed Standard | January 2018 |
| 8438 | IMAP Extension for STATUS=SIZES. Bosch | Proposed Standard | August 2018 |
| 8446 | The Transport Layer Security (TLS) Protocol Version 1.3E. Rescorla · obsoleted by RFC 9846 | Proposed Standard | August 2018 |
| 8474 | IMAP Extension for Object IdentifiersB. Gondwana, Ed. | Proposed Standard | September 2018 |
| 8550 | Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Certificate HandlingJ. Schaad, B. Ramsdell, S. Turner | Proposed Standard | April 2019 |
| 8551 | Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Message SpecificationJ. Schaad, B. Ramsdell, S. Turner | Proposed Standard | April 2019 |