04/11/2022
Likewise, you can ask this courier to send the letter to anyone in the world. The courier receives the letter, attaches your customer ID, stamps the post office address, and sends it out. From the recipient's point of view, the letter comes from the post office, not you (unless you sign it).
To protect the contents of the letter and your ID, the letters are translated into a language that only you and the post office staff can understand. This way, even if someone intercepts your letter, it cannot be read.
