Internet Message Access Protocol (IMAP) - Version 4rev2

This specification has been revised 4 times since RFC 1730 (1994). Each document below formally obsoleted the one before it; the versions still in force are listed first.

This lineage is derived automatically from the “obsoletes” relationships recorded in the public RFC Editor index — no editorial judgement is applied to the ordering. The most recent document in the chain is RFC 9051 (August 2021).