Unifi device tracker filling up with hundreds of unknown mac-addresses. Dont track new clients?

Configuration
13

Sorry to dig up an older thread, but is there a way to use the unifi integration to notify of new network devices?

I used to have an automation that used the known_devices.yaml, but that is now depreciated.

TIA

mb

EDIT:

This was the automation. Is there a Unifi event?

  - alias: System - New device connected
    initial_state: true
    trigger:
      - platform: event
        event_type: device_tracker_new_device
    action:
      - service: notify.pb
        data_template:
          message: >
            New device:
            {{trigger.event.data.host_name}}
            ({{trigger.event.data.entity_id}})
            Mac: {{trigger.event.data.mac}}
          title: Home Assistant