couriertcpd(1) on Linux
The text 332f5f339478, as Debian 7 (Wheezy) shipped it.
the Courier mail server TCP server daemon
Flags it lists
-
-access -
-accesslocal -
-address -
-block -
-denymsg -
-drop -
-group -
-listen -
-maxperc -
-maxperip -
-maxprocs -
-nodnslookup -
-noidentlookup -
-pid -
-restart -
-stderr -
-stderrlogger -
-stderrloggername -
-stop -
-user -
-warn