Who was the second ruler who brought mail to its zenith?

The second ruler who brought mail to its zenith was the Mughal Emperor Akbar, who reigned from 1556 to 1605. He established a sophisticated postal system known as the "Dak Chowki," which allowed for efficient communication across his vast empire. This system included relay stations and mounted couriers, significantly enhancing the speed and reliability of mail delivery. Akbar's innovations in communication contributed to the administrative efficiency and cohesion of the Mughal Empire.