RFC 1725:Post Office Protocol - Version 3
RFC-Ref

timer


Click on the red underlined text to get to the source

... A POP3 server MAY have an inactivity autologout timer. Such a timer MUST be of at least 10 minutes' duration. The receipt of any command ...
... A POP3 server MAY have an inactivity autologout timer. Such a timer MUST be of at least 10 minutes' duration. The receipt of any command from the client ...
... from the client during that interval should suffice to reset the autologout timer. When the timer expires, the session does NOT enter ...
... client during that interval should suffice to reset the autologout timer. When the timer expires, the session does NOT enter the UPDATE ...



Google
Web
RFC-Ref