The office building of the Reich Postal Ministry was built between 1871 and 1874 in the Leipziger Straße, Berlin.

The hyperinflation in the Weimar Republic created a deficit in the post- and telecommunications services.

The act of 1924 (Reichspostfinanzgesetz), created the Deutsche Reichspost (DRP) as an separate entity within the RPM; financially independent, covering their expenditures with user fees, yet organizationally and personnelwise part of the national government and civil service system.

On 1 January 1937, Department VIII of the former Reichspostzentralamt formed the core of the Forschungsanstalt der Deutschen Reichspost.

[11] The RPM supported independent research, such as nuclear physics, high-frequency technology, isotope separation, electron microscopy, and communications technology at the private research laboratory Forschungslaboratoriums für Elektronenphysik of Manfred von Ardenne, in Berlin-Lichterfelde.

In 1942, the postal protection was subsumed into the Allgemeine SS; this was just one more step in the national socialization of the Deutsche Reichspost.