smtp-source(1) on Linux
The text b63f5d3131df, as Debian 4.0 (Etch) shipped it.
multi-threaded SMTP/LMTP test generator
Flags it lists
-
-4 -
-6 -
-C -
-L -
-M -
-N -
-R -
-S -
-c -
-d -
-f -
-l -
-m -
-o -
-r -
-s -
-t -
-v -
-w