Why not have a sensor on the mailbox to notify you when it is opened and the mail has arrived? For that matter, do the same for larger boxes where packages can be delivered to.
I have placed a steplight inside my steel mailbox by the end of my driveway, but after checking the health status, it shows the bridge signal goes to either fair or poor. Is there a way to improve that?
My bridge is connected to a high-end router geared for a large house. Extenders inside my house give either good to excellent performance to all my smart devices.