Sending letters with fast means is of great antiquity. Job said, "My days have been lighter than a courier" (Jb. 9:25).
When Hezekiah proclaimed a Passover for all Israel, he sent letters of invitation by courier from city to city (2 Chron. 30:6, 10).
The couriers sent with the decree from the palace of Susa rushed out mounted on horses, mules, camels, and young dromedaries (Est. 3:13, 15; 8:10, 14, Heb.), "in haste for the order King".
In the prophecy of God's judgments on Babylon it is said that the news would be brought to the king by a courier heading quickly to find another courier (Jer. 51:31).
By dividing large districts into small departments with a post house in each, in which "runners" and animals were always ready to relieve each other, messages could be quickly dispersed in all directions.
Meaning of MAIL
Sending letters with fast means is of great antiquity. Job said, "My days have been lighter than a courier" (Jb. 9:25).