| IMAP | |
| RFC 2060 | Internet Message Access Protocol - version 4rev1 being updated by draft-crispin-imapv | 
| RFC 1730 | Internet Message Access Protocol - version 4 | 
| RFC 1731 | IMAP4 Authentication Mechanisms | 
| RFC 2086 | IMAP4 ACL extension | 
| RFC 2087 | IMAP4 QUOTA extension | 
| RFC 2088 | IMAP4 non-synchronizing literals | 
| RFC 2177 | IMAP4 IDLE command | 
| RFC 2192 | IMAP URL Scheme | 
| RFC 2193 | IMAP4 Mailbox Referrals | 
| RFC 2342 | IMAP4 Namespace | 
| RFC 2359 | IMAP4 UIDPLUS extension | 
| RFC 2595 | Using TLS with IMAP, POP3 and ACAP | 
| RFC 2971 | IMAP4 ID extension | 
| RFC 3348 | IMAP4 Child Mailbox Extension | 
| draft-melnikov-imap-unselect | IMAP UNSELECT command | 
| draft-crispin-imap-multiappend | IMAP MULTIAPPEND extension | 
| draft-ietf-imapext-sort | IMAP SORT and THREAD Extension | 
| draft-ietf-imapext-list-extensions | IMAP4 LIST Command Extensions | 
| draft-daboo-imap-annotatemore | IMAP ANNOTATEMORE Extension | 
| POP | |
| RFC 1939 | Post Office Protocol - Version 3 (POP3) | 
| RFC 1734 | POP3 AUTHentication command | 
| RFC 2449 | POP3 Extension Mechanism | 
| RFC 2595 | Using TLS with IMAP, POP3 and ACAP | 
| RFC 3206 | The SYS and AUTH POP Response Codes | 
| SASL | |
| RFC 2222 | Simple Authentication and Security Layer (SASL) being revised by draft-myers-saslrev | 
| RFC 2195 | IMAP/POP AUTHorize Extension for Simple Challenge/Response being revised by draft-nerenberg-sasl-crammd5 | 
| RFC 2245 | Anonymous SASL Mechanism being revised by draft-zeilenga-sasl-anon-00 | 
| RFC 2444 | The One-Time-Password SASL Mechanism | 
| RFC 2595 | Using TLS with IMAP, POP3 and ACAP | 
| RFC 2831 | Using Digest Authentication as a SASL Mechanism being revised by draft-melnikov-rfc2831bis | 
| TLS/SSL | |
| RFC 2246 | TLS Protocol | 
| draft-freier-ssl-version3 | The SSL Protocol Version 3.0 | 
| draft-hickman-netscape-ssl | The SSL Protocol | 
| LMTP | |
| RFC 2033 | Local Mail Transfer Protocol | 
| RFC 2821 | Simple Mail Transfer Protocol (SMTP) | 
| RFC 1869 | SMTP Service Extensions | 
| RFC 1652 | SMTP Service Extension for 8bit-MIMEtransport | 
| RFC 1870 | SMTP Service Extension for Message Size Declaration | 
| RFC 2034 | SMTP Service Extension for Returning Enhanced Error Codes | 
| RFC 3463 | Enhanced Mail System Status Codes | 
| RFC 3207 | SMTP Service Extension for Secure SMTP over TLS | 
| RFC 2554 | SMTP Service Extension for Authentication | 
| RFC 2920 | SMTP Service Extension for Command Pipelining | 
| draft-murchison-lmtp-ignorequota | LMTP Service Extension for Ignoring Recipient Quotas | 
| Sieve | |
| RFC 3028 | Sieve: A Mail Filtering Language | 
| RFC 2298 | Extensible Message Format for Message Disposition Notifications (MDNs) | 
| draft-showalter-sieve-vacation | Sieve -- Vacation Extension | 
| draft-melnikov-sieve-imapflags | Sieve -- IMAP flag Extension | 
| draft-murchison-sieve-regex | Sieve -- Regular Expression Extension | 
| draft-murchison-sieve-subaddress | Sieve -- Subaddress Extension | 
| draft-martin-sieve-notify | Sieve -- An extension for providing instant notifications | 
| draft-segmuller-sieve-relation | Sieve Extension: Relational Tests | 
| draft-martin-managesieve | Protocol for Remotely Managing Sieve Scripts | 
| Other | |
| RFC 2822 | Internet Message Format | 
| draft-siemborski-mupdate | MUPDATE Protocol (For Cyrus Murder) |