smtp(3tcl) on Linux
The text 0158bd94d05e, as Debian 10 (Buster) shipped it.
Client-side tcl implementation of the smtp protocol
Flags it lists
-
-atleastone -
-client -
-header -
-originator -
-password -
-ports -
-queue -
-recipients -
-servers -
-tlspolicy -
-username -
-usetls