It says from any carrier. To receive from the usps, among other things, you must have an address, a approved mail receptacle and a safe and secure location. T

It says from any carrier. To receive from the usps, among other things, you must have an address, a approved mail receptacle and a safe and secure location. The "space" in the mailbox is protected and is virtually owned by the usps. I could not deliver to a box that is not postal approved. I suspect the missing piece of info is an agent would have to palce a parcel into a Hub locker. Like the ups store does today.