Backup Radar currently supports the monitoring of two Unitrends email reports ("Backup Copy Activity" & "Schedule Report", see the end of this article for examples of these).
In order for these backups to be monitored by Backup Radar, you will need to send the email notifications from Unitrends to your @backupradar.net mailbox.
In Unitrends, navigate to Configure > Appliances, here select the appliance in question and click Edit.
This will open the below menu. Head to the Email tab on the top and enable the email reporting checkbox.
Fill in your SMTP server information and add your @backupradar.net email address, ensuring you enable "System", "Jobs" and "Failures".
The below Unitrends documentation may be of further assistance in relation to the setup of these reports:
Examples of the email notifications: