mailagent(1) on Linux
The text 8e3ab235fa22, as Debian 2.2 (Potato) shipped it.
an automatic mail-processing tool
Flags it lists
-
-F -
-I -
-L -
-V -
-c -
-d -
-h -
-i -
-l -
-o -
-q -
-r -
-s -
-t