This paper presents a detailed analysis of the development of the postal network in the territory of Moravia during the period of its most significant expansion, based on hitherto largely unused archival material, chiefly from the Postal Museum in Prague and the Moravian Archive in Brno. Using these key sources, chronological lists were reconstructed of postmasters in each post office, allowing us to determine the exact period in which each official served. This data on periods of service made it possible to compile a list of the postal routes set up by individual offices in the period under consideration and trace changes that occurred due to military conflict or for logistical reasons. Attention was also given to the hitherto neglected network of letter collection points in Moravia, which grew rapidly towards the end of the 18th century. The study represents a paradigm shift in research into the Moravian postal network. Besides already known postal routes, we also reconstructed routes whose existence had only been deduced from the records of one or two stations, and others that had escaped the attention of researchers altogether. With regard to letter collection points, the study considers the issue of which "mother" stations they were attached to. More generally, the study deepens our knowledge of the structure of the communications network in Moravia in the second half of the 18th century and provides a more precise picture of how it was connected with centres beyond the country’s borders. These results will provide potential future researchers into the Moravian postal service with a solid factual platform in which to anchor and contextualize their findings on specific post offices, stations or entire routes. The study can thus be seen as a contribution to economic and social history, as well as to that of communications., Vojtěch Klíma., and Obsahuje bibliografické odkazy