The following documents are necessary to understand the syntax rules most of the remaining documents. Note that some documents refer to RFC 2234 which has been replaced by RFC 5234: rfc5234.txt Augmented BNF for Syntax Specifications - ABNF rfc4466.txt Collected Extensions to IMAP4 ABNF The following documents specify the IMAP protocol: rfc3501.txt Internet Message Access Protocol - Version 4rev1 The following documents provide additional information which is useful in understanding the IMAP protocol: rfc1733.txt Distributed Electronic Mail Models in IMAP4 rfc2180.txt IMAP4 Multi-Accessed Mailbox Practice rfc2683.txt IMAP4 Implementation Recommendations rfc4549.txt Synchronization Operations for Disconnected IMAP4 Clients The following documents describe extensions to the IMAP protocol. Items marked with "*" are supported in this distribution: rfc4314.txt ACL * rfc3516.txt BINARY rfc4469.txt CATENATE * rfc3348.txt CHILDREN rfc4978.txt COMPRESS rfc4551.txt CONDSTORE rfc5161.txt ENABLE * rfc4731.txt ESEARCH rfc2971.txt ID * rfc2177.txt IDLE * rfc2088.txt LITERAL+ * rfc2221.txt LOGIN-REFERRALS * rfc2193.txt MAILBOX-REFERRALS * rfc3502.txt MULTIAPPEND * rfc2342.txt NAMESPACE rfc5162.txt QRESYNC rfc2087.txt QUOTA * rfc4959.txt SASL-IR * rfc4315.txt UIDPLUS * rfc3691.txt UNSELECT rfc4467.txt URLAUTH * rfc5032.txt WITHIN The following documents describe SASL: rfc4422.txt Simple Authentication and Security Layer (SASL) and the SASL mechanisms supported in this distribution: rfc4505.txt ANONYMOUS rfc2195.txt CRAM-MD5 rfc4752.txt GSSAPI rfc4616.txt PLAIN The following documents relate to internationalization issues: rfc4790.txt Internet Application Protocol Collation Registry rfc5051.txt i;unicode-casemap - Simple Unicode Collation Algorithm The following documents are primarily of historic interest: rfc1732.txt IMAP4 Compatibility with IMAP2 and IMAP2bis rfc2061.txt IMAP4 Compatibility with IMAP2bis rfc2062.txt Internet Message Access Protocol - Obsolete Syntax The following documents discuss matters which are related to IMAP: rfc3503.txt MDN Profile for IMAP rfc3656.txt MUPDATE Distributed Mailbox Database Protocol rfc4468.txt Message Submission BURL Extension rfc5092.txt IMAP URL Scheme