Abstract: Yamskaya mail delivery as the postal communication system played an important role for the Russian State. The word “yam” is of Turkic origin. The Tatar post stations were known as “yamy”. In order to understand the degree of influence of the Golden Horde on the Russian lands, it is crucial to understand what influence the Tatar (yamskaya) postal system had upon the formation of the Russian postal (yamskaya) service. This question has the scholars’ attention; however, there is yet no uniform opinion. The subject of this research is the factor of the Tatar influence upon establishment of the Russian postal (yamskaya) system. The object is the scientific works of pre-revolutionary, Soviet, and modern Russian scholars on the topic. The studies are demonstrated in chronological order. The article employs the traditional methods of historiographical research: historical-narrative and historical-comparative. As a result, the author determines the three groups of researchers:
1) Scholars, who recognize the considerable influence of the conquerors upon the formation of the Russian postal (yamskaya) service. Their conclusions indicate direct participation of Tatars in establishment of the Russian postal system, or taking the Mongolian system as an example;
2) Historians who denied the influence of the Tatar postal (yamskaya) system upon the formation of the Russian postal service.
3) Researchers who believe that the influence of the conquerors was significant, however not determinant for the Russian postal service. The experts underline the borrowing of terminology and introduction of the new postal tax.