The Postschutz was created in 1933 in order to protect the establishments of the German Post Office from communist attacks.

In 1942 the Postschutz was put under the command of the Allgemeine SS, becoming the SS-Postschutz with Gottlob Berger as military leader, and subordinated to the supervision of the SS-Hauptamt.

In 1937 an agreement between the Wehrmacht and the Postmaster General Wilhelm Ohnesorge established that in time of war 29,000 men from the Reichspost would be reserved for the Postschutz.

In 1939 the Postschutz contained 40 000 men, and was also in charge of air raid precautions for the Reichspost.

Members of the SS-Postschutz were also drafted into SS-Sicherungs-Bataillone der Deutschen Reichspost (SS-security battalions of the German post office), combating partisans in occupied Slovenia and Belorussia.