In Rotterdam, PostNL delivers the mail or packages that fit through the letterbox using someone on a bike (they're usually walking their bike, but that's beside the point I guess).
Packages are delivered by a PostNL guy driving a white van (or, more accurately, a subcontractor using their own rented non-PostNL branded van, but wearing a PostNL uniform)
Packages are delivered by a PostNL guy driving a white van (or, more accurately, a subcontractor using their own rented non-PostNL branded van, but wearing a PostNL uniform)