pmailq(8) on Linux
The text e5d6dc3c23ae, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
Postfix MAIL Queue manager
Flags it lists
-
--email -
--help -
--msg -
--size-lower -
--size-upper -
--version -
-a -
-e -
-h -
-l -
-m -
-o -
-u