The server I am configuring does not have a mail server running on it. The program ssmtp (https://wiki.debian.org/sSMTP) is used as the Message Transfer Agent (MTA) for other applications to send emails via GMail. No inbound emails can be received this way.
This program is executed at the system command line as a sendmail clone rather than using an HTTP url.
e.g. sendmail t
with message content, including usual message headers, piped in at the command line.
It has its own configuration file that contains the GMail credentials so there is no need for calling programs to know them.
How would I use this program for asmbb outbound emails?