The following table summarizes all pop3d command line options.
--bulletin-db=file
Set the name of the database file to keep last bulletin numbers in.
Be sure not to specify ‘.db’ extension. See Bulletins.
--bulletin-source=mbox
Set the URL of the bulletin source mailbox. See Bulletins.
-d[number]
--daemon[=number]
Run in standalone mode. An optional number specifies the maximum number
of child processes allowed to run simultaneously. When it is omitted,
it defaults to 10 processes.
Please note, that there should be no whitespace between the
-d and its parameter.
--delete-expired
Delete expired messages upon closing the mailbox. See Auto-expire.
--expire=days
Expire read messages after the given number of days. If days is
0, this option implies --delete-expired. See Auto-expire.
-i
--inetd
Run in inetd mode.
-h
--help
Display short help message and exit.
--login-delay=seconds
Sets the minimum allowed delay between closing a pop3d session and
opening it again with the same user name. See Login delay.
-m path
--mail-spool=path
Set path to the mailspool directory
-p number
--port number
Listen on given port number. This option is meaningful only in
standalone mode. It defaults to port 110.
--stat-file=filename
Sets the name of the login timestamp database, used with
--login-delay. By default, these data are kept in
/var/run/pop3-login. Be sure to specify the file name
without DBM-specific suffix. See Login delay.
-t number
--timeout number
Set idle timeout to given number of seconds. Default is 600 seconds (10
minutes). The daemon breaks the connection if it receives no commands
from the client within that number of seconds.
--tls-required
Always require STLS command before entering authentication phase.
-v
--version
Display program version and exit.
--undelete
Remove all deletion marks from the messages after opening the mailbox.