@Alex8012
Useally the addres is already on the itinerary, except when you have set in the listing to wait for cancellation time period. That been said, it is not common practice guest can sent packages to an Airbnb accommodation and certainly not if they did not even are checked-in. If they need to send something, they can use a local service point from DHL. or whatever is used for transport, and collect it from there.