Are you running on controllers and finding device disconnection alerts are no longer working? There is a simple reason. Ubiquiti removed device disconnection email alerts from 4 versions of the 6.4/6.5 controller releases.

Clouduni.fi understand how important these alerts can be for some users and sites. If this is a feature you really need then sign up for a Clouduni.Fi UniFi Hosted Controller and you will see device disconnection and reconnection email alerts working.