| 10022 | IMAP UIDBATCHES ExtensionD. Eggert, Ed. | Proposed Standard | July 2026 |
| 9755 | IMAP Support for UTF-8P. Resnick, J. Yao, A. Gulbrandsen | Proposed Standard | March 2025 |
| 9738 | IMAP MESSAGELIMIT ExtensionA. Melnikov, A. P. Achuthan, V. Nagulakonda, L. Alves | Experimental | March 2025 |
| 9698 | The JMAPACCESS Extension for IMAPA. Gulbrandsen, B. Gondwana | Proposed Standard | January 2025 |
| 9586 | IMAP Extension for Using and Returning Unique Identifiers (UIDs) OnlyA. Melnikov, A. P. Achuthan, V. Nagulakonda, A. Singh, L. Alves | Experimental | May 2024 |
| 9394 | IMAP PARTIAL Extension for Paged SEARCH and FETCHA. Melnikov, A. P. Achuthan, V. Nagulakonda, L. Alves | Proposed Standard | June 2023 |
| 9208 | IMAP QUOTA ExtensionA. Melnikov | Proposed Standard | March 2022 |
| 9057 | Email Author Header FieldD. Crocker | Experimental | June 2021 |
| 9051 | Internet Message Access Protocol (IMAP) - Version 4rev2A. Melnikov, Ed., B. Leiba, Ed. | Proposed Standard | August 2021 |
| 9042 | Sieve Email Filtering: Delivery by MAILBOXIDB. Gondwana, Ed. | Proposed Standard | June 2021 |
| 8996 | Deprecating TLS 1.0 and TLS 1.1K. Moriarty, S. Farrell | Best Current Practice | March 2021 |
| 8970 | IMAP4 Extension: Message Preview GenerationM. Slusarz | Proposed Standard | December 2020 |
| 8689 | SMTP Require TLS OptionJ. Fenton | Proposed Standard | November 2019 |
| 8621 | The JSON Meta Application Protocol (JMAP) for MailN. Jenkins, C. Newman | Proposed Standard | August 2019 |
| 8601 | Message Header Field for Indicating Message Authentication StatusM. Kucherawy | Proposed Standard | May 2019 |
| 8579 | Sieve Email Filtering: Delivering to Special-Use MailboxesS. Bosch | Proposed Standard | May 2019 |
| 8514 | Internet Message Access Protocol (IMAP) - SAVEDATE ExtensionS. Bosch | Proposed Standard | January 2019 |
| 8508 | IMAP REPLACE ExtensionS. Brandt | Proposed Standard | January 2019 |
| 8474 | IMAP Extension for Object IdentifiersB. Gondwana, Ed. | Proposed Standard | September 2018 |
| 8460 | SMTP TLS ReportingD. Margolis, A. Brotman, B. Ramakrishnan, J. Jones, M. Risher | Proposed Standard | September 2018 |
| 8457 | IMAP "$Important" Keyword and "\Important" Special-Use AttributeB. Leiba, Ed. | Proposed Standard | September 2018 |
| 8440 | IMAP4 Extension for Returning MYRIGHTS Information in Extended LISTK. Murchison, B. Gondwana | Proposed Standard | August 2018 |
| 8438 | IMAP Extension for STATUS=SIZES. Bosch | Proposed Standard | August 2018 |
| 8437 | IMAP UNAUTHENTICATE Extension for Connection ReuseC. Newman | Proposed Standard | August 2018 |
| 8314 | Cleartext Considered Obsolete: Use of Transport Layer Security (TLS) for Email Submission and AccessK. Moore, C. Newman | Proposed Standard | January 2018 |
| 8265 | Preparation, Enforcement, and Comparison of Internationalized Strings Representing Usernames and PasswordsP. Saint-Andre, A. Melnikov | Proposed Standard | October 2017 |
| 8098 | Message Disposition NotificationT. Hansen, Ed., A. Melnikov, Ed. | Internet Standard | February 2017 |
| 7889 | The IMAP APPENDLIMIT ExtensionJ. SrimushnamBoovaraghamoorthy, N. Bisht | Proposed Standard | May 2016 |
| 7888 | IMAP4 Non-synchronizing LiteralsA. Melnikov, Ed. | Proposed Standard | May 2016 |
| 7832 | Application Bridging for Federated Access Beyond Web (ABFAB) Use CasesR. Smith, Ed. | Informational | May 2016 |
| 7817 | Updated Transport Layer Security (TLS) Server Identity Check Procedure for Email-Related ProtocolsA. Melnikov | Proposed Standard | March 2016 |
| 7628 | A Set of Simple Authentication and Security Layer (SASL) Mechanisms for OAuthW. Mills, T. Showalter, H. Tschofenig | Proposed Standard | August 2015 |
| 7624 | Confidentiality in the Face of Pervasive Surveillance: A Threat Model and Problem StatementR. Barnes, B. Schneier, C. Jennings, T. Hardie, B. Trammell, C. Huitema, D. Borkmann | Informational | August 2015 |
| 7613 | Preparation, Enforcement, and Comparison of Internationalized Strings Representing Usernames and PasswordsP. Saint-Andre, A. Melnikov · obsoleted by RFC 8265 | Proposed Standard | August 2015 |
| 7601 | Message Header Field for Indicating Message Authentication StatusM. Kucherawy · obsoleted by RFC 8601 | Proposed Standard | August 2015 |
| 7508 | Securing Header Fields with S/MIMEL. Cailleux, C. Bonatti | Experimental | April 2015 |
| 7377 | IMAP4 Multimailbox SEARCH ExtensionB. Leiba, A. Melnikov | Proposed Standard | October 2014 |
| 7352 | Sieve Email Filtering: Detecting Duplicate DeliveriesS. Bosch | Proposed Standard | September 2014 |
| 7281 | Authentication-Results Registration for S/MIME Signature VerificationA. Melnikov | Informational | June 2014 |
| 7162 | IMAP Extensions: Quick Flag Changes Resynchronization (CONDSTORE) and Quick Mailbox Resynchronization (QRESYNC)A. Melnikov, D. Cridland | Proposed Standard | May 2014 |
| 7017 | IMAP Access to IETF Email List ArchivesR. Sparks | Informational | August 2013 |
| 7001 | Message Header Field for Indicating Message Authentication StatusM. Kucherawy · obsoleted by RFC 7601 | Proposed Standard | September 2013 |
| 6919 | Further Key Words for Use in RFCs to Indicate Requirement LevelsR. Barnes, S. Kent, E. Rescorla | Experimental | 1 April 2013 |
| 6885 | Stringprep Revision and Problem Statement for the Preparation and Comparison of Internationalized Strings (PRECIS)M. Blanchet, A. Sullivan | Informational | March 2013 |
| 6858 | Simplified POP and IMAP Downgrading for Internationalized EmailA. Gulbrandsen | Proposed Standard | March 2013 |
| 6855 | IMAP Support for UTF-8P. Resnick, Ed., C. Newman, Ed., S. Shen, Ed. · obsoleted by RFC 9755 | Proposed Standard | March 2013 |
| 6851 | Internet Message Access Protocol (IMAP) - MOVE ExtensionA. Gulbrandsen, N. Freed, Ed. | Proposed Standard | January 2013 |
| 6785 | Support for Internet Message Access Protocol (IMAP) Events in SieveB. Leiba | Proposed Standard | November 2012 |
| 6650 | Creation and Use of Email Feedback Reports: An Applicability Statement for the Abuse Reporting Format (ARF)J. Falk, M. Kucherawy, Ed. | Proposed Standard | June 2012 |
| 6616 | A Simple Authentication and Security Layer (SASL) and Generic Security Service Application Program Interface (GSS-API) Mechanism for OpenIDE. Lear, H. Tschofenig, H. Mauldin, S. Josefsson | Proposed Standard | May 2012 |
| 6595 | A Simple Authentication and Security Layer (SASL) and GSS-API Mechanism for the Security Assertion Markup Language (SAML)K. Wierenga, E. Lear, S. Josefsson | Proposed Standard | April 2012 |
| 6530 | Overview and Framework for Internationalized EmailJ. Klensin, Y. Ko | Proposed Standard | February 2012 |
| 6409 | Message Submission for MailR. Gellens, J. Klensin | Internet Standard | November 2011 |
| 6347 | Datagram Transport Layer Security Version 1.2E. Rescorla, N. Modadugu · obsoleted by RFC 9147 | Proposed Standard | January 2012 |
| 6237 | IMAP4 Multimailbox SEARCH ExtensionB. Leiba, A. Melnikov · obsoleted by RFC 7377 | Experimental | May 2011 |
| 6203 | IMAP4 Extension for Fuzzy SearchT. Sirainen | Proposed Standard | March 2011 |
| 6196 | Moving mailserver: URI Scheme to HistoricA. Melnikov | Proposed Standard | March 2011 |
| 6186 | Use of SRV Records for Locating Email Submission/Access ServicesC. Daboo | Proposed Standard | March 2011 |
| 6154 | IMAP LIST Extension for Special-Use MailboxesB. Leiba, J. Nicolson | Proposed Standard | March 2011 |
| 6125 | Representation and Verification of Domain-Based Application Service Identity within Internet Public Key Infrastructure Using X.509 (PKIX) Certificates in the Context of Transport Layer Security (TLS)P. Saint-Andre, J. Hodges · obsoleted by RFC 9525 | Proposed Standard | March 2011 |
| 6120 | Extensible Messaging and Presence Protocol (XMPP): CoreP. Saint-Andre | Proposed Standard | March 2011 |
| 6109 | La Posta Elettronica Certificata - Italian Certified Electronic MailC. Petrucci, F. Gennai, A. Shahin, A. Vinciarelli | Informational | April 2011 |
| 6009 | Sieve Email Filtering: Delivery Status Notifications and Deliver-By ExtensionsN. Freed | Proposed Standard | October 2010 |
| 5957 | Display-Based Address Sorting for the IMAP4 SORT ExtensionD. Karp | Proposed Standard | July 2010 |
| 5819 | IMAP4 Extension for Returning STATUS Information in Extended LISTA. Melnikov, T. Sirainen | Proposed Standard | March 2010 |
| 5804 | A Protocol for Remotely Managing Sieve ScriptsA. Melnikov, Ed., T. Martin | Proposed Standard | July 2010 |
| 5788 | IMAP4 Keyword RegistryA. Melnikov, D. Cridland | Proposed Standard | March 2010 |
| 5738 | IMAP Support for UTF-8P. Resnick, C. Newman · obsoleted by RFC 6855 | Experimental | March 2010 |
| 5616 | Streaming Internet Messaging AttachmentsN. Cook | Informational | August 2009 |
| 5598 | Internet Mail ArchitectureD. Crocker | Informational | July 2009 |
| 5551 | Lemonade Notifications ArchitectureR. Gellens, Ed. | Informational | August 2009 |
| 5550 | The Internet Email to Support Diverse Service Environments (Lemonade) ProfileD. Cridland, Ed., A. Melnikov, Ed., S. Maes, Ed. | Proposed Standard | August 2009 |
| 5530 | IMAP Response CodesA. Gulbrandsen | Proposed Standard | May 2009 |
| 5524 | Extended URLFETCH for Binary and Converted PartsD. Cridland | Proposed Standard | May 2009 |
| 5490 | The Sieve Mail-Filtering Language -- Extensions for Checking Mailbox Status and Accessing Mailbox MetadataA. Melnikov | Proposed Standard | March 2009 |
| 5466 | IMAP4 Extension for Named Searches (Filters)A. Melnikov, C. King | Proposed Standard | February 2009 |
| 5465 | The IMAP NOTIFY ExtensionA. Gulbrandsen, C. King, A. Melnikov | Proposed Standard | February 2009 |
| 5464 | The IMAP METADATA ExtensionC. Daboo | Proposed Standard | February 2009 |
| 5463 | Sieve Email Filtering: Ihave ExtensionN. Freed | Proposed Standard | March 2009 |
| 5451 | Message Header Field for Indicating Message Authentication StatusM. Kucherawy · obsoleted by RFC 7001 | Proposed Standard | April 2009 |
| 5442 | LEMONADE Architecture - Supporting Open Mobile Alliance (OMA) Mobile Email (MEM) Using Internet MailE. Burger, G. Parsons | Informational | March 2009 |
| 5437 | Sieve Notification Mechanism: Extensible Messaging and Presence Protocol (XMPP)P. Saint-Andre, A. Melnikov | Proposed Standard | January 2009 |
| 5423 | Internet Message Store EventsR. Gellens, C. Newman | Proposed Standard | March 2009 |
| 5383 | Deployment Considerations for Lemonade-Compliant Mobile EmailR. Gellens | Best Current Practice | October 2008 |
| 5321 | Simple Mail Transfer ProtocolJ. Klensin | Draft Standard | October 2008 |
| 5267 | Contexts for IMAP4D. Cridland, C. King | Proposed Standard | July 2008 |
| 5260 | Sieve Email Filtering: Date and Index ExtensionsN. Freed | Proposed Standard | July 2008 |
| 5259 | Internet Message Access Protocol - CONVERT ExtensionA. Melnikov, Ed., P. Coates, Ed. | Proposed Standard | July 2008 |
| 5258 | Internet Message Access Protocol version 4 - LIST Command ExtensionsB. Leiba, A. Melnikov | Proposed Standard | June 2008 |
| 5257 | Internet Message Access Protocol - ANNOTATE ExtensionC. Daboo, R. Gellens | Experimental | June 2008 |
| 5256 | Internet Message Access Protocol - SORT and THREAD ExtensionsM. Crispin, K. Murchison | Proposed Standard | June 2008 |
| 5255 | Internet Message Access Protocol InternationalizationC. Newman, A. Gulbrandsen, A. Melnikov | Proposed Standard | June 2008 |
| 5232 | Sieve Email Filtering: Imap4flags ExtensionA. Melnikov | Proposed Standard | January 2008 |
| 5228 | Sieve: An Email Filtering LanguageP. Guenther, Ed., T. Showalter, Ed. | Proposed Standard | January 2008 |
| 5183 | Sieve Email Filtering: Environment ExtensionN. Freed | Proposed Standard | May 2008 |
| 5182 | IMAP Extension for Referencing the Last SEARCH ResultA. Melnikov | Proposed Standard | March 2008 |
| 5162 | IMAP4 Extensions for Quick Mailbox ResynchronizationA. Melnikov, D. Cridland, C. Wilson · obsoleted by RFC 7162 | Proposed Standard | March 2008 |
| 5161 | The IMAP ENABLE ExtensionA. Gulbrandsen, Ed., A. Melnikov, Ed. | Proposed Standard | March 2008 |
| 5092 | IMAP URL SchemeA. Melnikov, Ed., C. Newman | Proposed Standard | November 2007 |
| 5032 | WITHIN Search Extension to the IMAP ProtocolE. Burger, Ed. | Proposed Standard | September 2007 |
| 4978 | The IMAP COMPRESS ExtensionA. Gulbrandsen | Proposed Standard | August 2007 |
| 4959 | IMAP Extension for Simple Authentication and Security Layer (SASL) Initial Client ResponseR. Siemborski, A. Gulbrandsen | Proposed Standard | September 2007 |
| 4790 | Internet Application Protocol Collation RegistryC. Newman, M. Duerst, A. Gulbrandsen | Proposed Standard | March 2007 |
| 4731 | IMAP4 Extension to SEARCH Command for Controlling What Kind of Information Is ReturnedA. Melnikov, D. Cridland | Proposed Standard | November 2006 |
| 4686 | Analysis of Threats Motivating DomainKeys Identified Mail (DKIM)J. Fenton | Informational | September 2006 |
| 4648 | The Base16, Base32, and Base64 Data EncodingsS. Josefsson | Proposed Standard | October 2006 |
| 4643 | Network News Transfer Protocol (NNTP) Extension for AuthenticationJ. Vinocur, K. Murchison | Proposed Standard | October 2006 |
| 4551 | IMAP Extension for Conditional STORE Operation or Quick Flag Changes ResynchronizationA. Melnikov, S. Hole · obsoleted by RFC 7162 | Proposed Standard | June 2006 |
| 4550 | Internet Email to Support Diverse Service Environments (Lemonade) ProfileS. Maes, A. Melnikov · obsoleted by RFC 5550 | Proposed Standard | June 2006 |
| 4549 | Synchronization Operations for Disconnected IMAP4 ClientsA. Melnikov, Ed. | Informational | June 2006 |
| 4505 | Anonymous Simple Authentication and Security Layer (SASL) MechanismK. Zeilenga | Proposed Standard | June 2006 |
| 4469 | Internet Message Access Protocol (IMAP) CATENATE ExtensionP. Resnick | Proposed Standard | April 2006 |
| 4468 | Message Submission BURL ExtensionC. Newman | Proposed Standard | May 2006 |
| 4467 | Internet Message Access Protocol (IMAP) - URLAUTH ExtensionM. Crispin | Proposed Standard | May 2006 |
| 4466 | Collected Extensions to IMAP4 ABNFA. Melnikov, C. Daboo | Proposed Standard | April 2006 |
| 4416 | Goals for Internet Messaging to Support Diverse Service EnvironmentsJ. Wong, Ed. | Informational | February 2006 |
| 4409 | Message Submission for MailR. Gellens, J. Klensin · obsoleted by RFC 6409 | Draft Standard | April 2006 |
| 4347 | Datagram Transport Layer SecurityE. Rescorla, N. Modadugu · obsoleted by RFC 6347 | Historic | April 2006 |
| 4315 | Internet Message Access Protocol (IMAP) - UIDPLUS extensionM. Crispin | Proposed Standard | December 2005 |
| 4314 | IMAP4 Access Control List (ACL) ExtensionA. Melnikov | Proposed Standard | December 2005 |
| 4161 | Guidelines for Optional Services for Internet Fax GatewaysK. Mimura, K. Yokoyama, T. Satoh, K. Watanabe, C. Kanaide | Informational | September 2005 |
| 4024 | Voice Messaging Client BehaviourG. Parsons, J. Maruszak | Informational | July 2005 |
| 3920 | Extensible Messaging and Presence Protocol (XMPP): CoreP. Saint-Andre, Ed. · obsoleted by RFC 6120 | Proposed Standard | October 2004 |
| 3819 | Advice for Internet Subnetwork DesignersP. Karn, Ed., C. Bormann, G. Fairhurst, D. Grossman, R. Ludwig, J. Mahdavi, G. Montenegro, J. Touch, L. Wood | Best Current Practice | July 2004 |
| 3795 | Survey of IPv4 Addresses in Currently Deployed IETF Application Area Standards Track and Experimental DocumentsR. Sofia, P. Nesser, II | Informational | June 2004 |
| 3691 | Internet Message Access Protocol (IMAP) UNSELECT commandA. Melnikov | Proposed Standard | February 2004 |
| 3656 | The Mailbox Update (MUPDATE) Distributed Mailbox Database ProtocolR. Siemborski | Experimental | December 2003 |
| 3599 | Request for Comments Summary RFC Numbers 3500-3599S. Ginoza | Informational | December 2003 |
| 3516 | IMAP4 Binary Content ExtensionL. Nerenberg | Proposed Standard | April 2003 |
| 3503 | Message Disposition Notification (MDN) profile for Internet Message Access Protocol (IMAP)A. Melnikov | Proposed Standard | March 2003 |
| 3502 | Internet Message Access Protocol (IMAP) - MULTIAPPEND ExtensionM. Crispin | Proposed Standard | March 2003 |