1 - Click on STMP Server under Configuration Tab. 

2 - Put in your SMTP server settings and click Next. You are required to use your own SMTP server or SMTP relay. Please enter the appropriate SMTP details for your SMTP server you are using.

3 - Click Change on Email Settings

4 - Click Enable Email Notifications and Click OK. 

5 - Click on Actions for Notification Group. 

6 - Uncheck all notification options and under jobs select "Backup job has been completed & Background job has failed". Then select the Notification Options tab. 

7 - Select Notify by email, put in the backup radar email address you were provided, and click Ok.