Denmark's postal service, PostNord, has delivered its final letter, ending a 400-year tradition as the nation fully embraces digital communication. Citing a steep decline in letter usage, with volumes down over 90% since 2000, PostNord is shifting focus to parcel delivery due to e-commerce growth. While physical letters will now be handled by private couriers, the move highlights Denmark's advanced digitalization, though some express nostalgia and concern for older generations.