My Mailbox Alert Keeps Getting Fooled

The notification that tells me mail has arrived has one recurring flaw: someone in the house lifts the flap to peek inside, and the system reports a delivery that never happened.

So the problem is not the sensor. It is telling apart a real drop-off from a curious check by one of us, and I have not landed on a clean answer yet.

This clip is a slice of a longer podcast conversation with another smart home hobbyist where we compared the automations we actually keep running.