This is what some services in Germany do. All banks of course, but also my health insurance too. Also some parking app did it. This works well because the post

This is what some services in Germany do. All banks of course, but also my health insurance too. Also some parking app did it. This works well because the post is reliable, but has the disadvantage of being quite async. Also not entirely safe - I’ve had instances when the postman found me loitering in front of the house and just handed me my correspondence