Joe User <firstname.lastname@example.org>
7D82 FB9F D25A 2CE4 5241 6C37 BF4B 8EEF 1A57 1DF5
It is important that your contacts receive this character string in a secure way, on paper during face-to-face contact at best. Or by phone if that is not possible. In no case by email or from a web page or similar.