Post Office Protocol - Version 3
This specification has been revised 4 times since RFC 1081 (1988). Each document below formally obsoleted the one before it; the versions still in force are listed first.
Revision timeline
Current version — implement against this
Superseded versions — historical reference only
- RFC 1081Post Office Protocol: Version 3ObsoletedNovember 1988replaced by RFC1225
- RFC 1225Post Office Protocol: Version 3ObsoletedMay 1991draft standardreplaced by RFC1460
- RFC 1460Post Office Protocol - Version 3ObsoletedJune 1993draft standardreplaced by RFC1725
- RFC 1725Post Office Protocol - Version 3ObsoletedNovember 1994internet standardreplaced by RFC1939
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 1939 (May 1996).