newmail(1) on Linux
The text 03c9bd379905, as Debian 2.2 (Potato), Debian 2.1 (Slink), Debian 2.0 (Hamm), Debian 1.3 (Bo), Debian 1.2 (Rex), Debian 1.1 (Buzz) shipped it.
programs to asynchronously notify of new mail
Flags it lists
-
-d -
-i -
-w