Sending alarm to a different network

Our production network is on a separate domain from our business network. I need to be able to send email notifications to users on the business network. I can’t see how to simply type in a “To” address. Am I looking in the right place? On-Call Roster? Only users set up in Ignition are there. Those users don’t have email.

Help?

I called tech support. Figured out how to enter an email address for an Ignition user.