The Largest SouthEastern European Provider of Letterbox Marketing Founded on 1995 Operating in Greece ,Turkey, Bulgaria , Albania and Cyprus Proud Member of the European Letterbox Marketing Association (ELMA) With an exclusive network of Branches and Hubs, DELTA POST is the only SouthEastern member of ELMA, the leading agency in the field of Direct Marketing in Europe. Our cooperation with ELMA ensures high quality services in the distribution of your advertising material to 120,000,000 households in 22 European countries.