https://authority.gv.at/delivery_notification Maxi Mustermann1 1984-01-24 AT 1010 Wien Muststrasse 10 valid-delivery-request-id WichtigeMitteilung RSa https://authority.gv.at/files/73bdf969781ba41fa07df1ff8439cf685c0db1c3 brief.xml text/xml SHA1 9b972c70fdaf5e1b26b3387c87b0ffb72e5940b6 123401