"in the event of non delivery please return to the sender" in German In the event of non-delivery please return to the sender. Falls nicht zustellbar, bitte an den Absender zurück. Detailed translations for "in the event of non delivery please return to the sender" In the event of non-delivery please return to the sender. In the event of non-delivery please return to the sender. Falls nicht zustellbar, bitte an den Absender zurück.