I suggest installing the doorbell unit that are sold at Lowe's or Home Depot that have a wireless camera that can be connected to a unit to record and send a picture to you to see everyone coming to your door.
They have small wireless cameras that you can install around your home with digital recorder.
If you think postal workers or others are stealing your packages contact the postal inspectors to be alerted to spot check when packages are being delivered. We only use the priority mail flat rate packages that have a tracking number with insurance.
We are considering switching from Postal Service to USPS or FED EX
Sent from my LG-H830 using Tapatalk