The Danish Post has installed such a system for general packages here. If they cannot deliver, they stick it in such a machine (open 24/7) and you can pick it u

The Danish Post has installed such a system for general packages here. If they cannot deliver, they stick it in such a machine (open 24/7) and you can pick it up. But you can also put a special delivery address on your package so it will end up there right away (and you'll get a text message when it's there). You can also supposedly send packages from them.