RFC 1939, "Post Office Protocol - Version 3", May 1996Source of RFC: Legacy
Area Assignment: app
Errata ID: 529
Reported By: Bernard Treine
Date Reported: 2003-11-02
Section 7 says:
The server should never reuse an unique-id in a given maildrop, for as long as the entity using the unique-id exists.
It should say:
The server should never reuse a unique-id in a given maildrop for as long as the maildrop exists.