More information on the M1XEP and the Email/Text Notification can be found at :
https://www.elkproducts.com/email-text-notifications-with-the-elk-m1xep/
https://www.elkproducts.com/m1xep-recommended-email-service-providers/
Once you’ve setup the Outbound Email Service Provider within the M1XEP Setup (M1XEP Setup and the Email Tab) you will need to create a Rule to send the Email/Text (Automation and Rules).
Here is an example of Email/Text Rules https://www.elkproducts.com/email-text-notifications-with-the-elk-m1xep/