Adding User Notifications allows you to notify up to 10 additional users by text and email in addition to the account owner.
By going to your Account Profile screen under the avatar menu you can click on the Add New User Notification link to create additional user notifications. These notification are triggered whenever a new text message is received.
Note: The global Email Notification and Text Forwarding needs to be enabled in order for the user notifications to work. ie. If the user notification has email enabled but the global Email Notification is not enabled, then it won't work.