not sure the reality of this.
who are the people buying a ~$1000? mains-connected - and pretty huge, ugly and imposing - "smart mailbox" just to get deliveries of the dozen or so items a year that will be under the 500g or so weight limit for drone deliveries?
who lives in an area where wind and rain are such a rare occurence that they will happily postpone a delivery a day or two, has the room and money for such a device and doesn't already have a back yard where the drone could drop it.
seems like an invention looking for a reason to exist, or more likely just a "we're-relevant" marketing exercise for northrop.