Subscribing to notifications allows you to view the Results report in the Monitoring group, as well as receive messages about site availability by email or SMS.
To subscribe to monitoring notifications, go to the Notifications tab in the Settings section and select the option:
Enter the email address for receiving notifications (you can use commas to separate multiple addresses).
Switch the setting to the On position and specify the time of day when you want to get messages.
In order for SMS notifications to work, your must have for your account.