Toshiba e-STUDIO190F, Service Manual

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A POP3 server MAY have an inactivity auto logout timer. Such a timer MUST be of at least 10 minutes’
duration. The receipt of any command from the client during that interval should suffice to reset the auto
logout timer. When the timer expires, the session does NOT enter the UPDATE state--the server should
close the TCP connection without removing any messages or sending any response to the client.
9.9.3. POP3 Command Summary
Note:
With the exception of the STAT, LIST, and UIDL commands, the reply given by the POP3 server to any
command is significant only to "+OK" and "-ERR". The client may ignore any text occurring after this
reply.
Minimal POP3 Commands:
USER name valid in AUTHORIZATION state
PASS string
QUIT
STAT valid in the TRANSACTION state
LIST [msg]
RETR msg
DELE msg
NOOP
RSET
QUIT
Optional POP3 Commands:
APOP name digest valid in AUTHORIZATION state
TOP msg n valid in the TRANSACTION state
UIDL [msg]
POP3 Replies:
+OK
-ERR
From: To:
Sample of a POP3 Protocol Log