innmail(1) on Linux
The text 8b701e4ff1a9, as Debian 12 (Bookworm) shipped it.
Simple mail-sending program
Flags it lists
-
-a -
-h -
-s
The text 8b701e4ff1a9, as Debian 12 (Bookworm) shipped it.
Simple mail-sending program
-a
-h
-s