sup-mail(1) on Linux
The text a8d1b123195b, as Debian 8 (Jessie) shipped it.
a curses-based email client
Flags it lists
-
--compose -
--help -
--list-hooks -
--no-initial-poll -
--no-threads -
--search -
--subject -
--version -
-c -
-h -
-j -
-l -
-n -
-o -
-s -
-v