ZenMail serves as an SMTP server that you can bind to a specific TCP port. You can then configure your embedded system to send mail to the Resource Manager server explicitly by using the server's IP address as the relay.

ZenMail supports these configuration directives:

  • ${ZENHOME}/bin/zenmail (no arguments) - Default operation. Binds to port 25 on all ports and listens for email messages to arrive. Ignores the TO field in the email and uses the FROM address as the device IP address.

  • ${ZENHOME}/bin/zenmail --listenPort - Bind to the port provided. Useful in situations in which an SMTP server is already running on the Resource Manager server and you do not want to interfere with the existing mail delivery system. Semantics are the same as the no argument version (FROM address is used as the device IP).