sup-mail(1) on Linux
The text 2d36e44ea421, as Debian 7 (Wheezy) shipped it.
Sup, a thread-centric mailer with tagging and fast search
Flags it lists
-
--compose -
--help -
--list-hooks -
--no-initial-poll -
--no-threads -
--search -
--version -
-c -
-h -
-l -
-n -
-o -
-s -
-v