What steps does a letter go through from sending to receiving?

Writer → Deliver to the mailbox → First local mail collector → Send to the post office for distribution (in some places, it is manually distributed, and in some places, it is distributed by computer according to postal code) → Second local mail distributor sends it to the mail car of the recipient → Arrive at the local (first-class city) → First local recipient →

Send it to the local post office for zoning (secondary city) → follow the previous method until the grade city where the address is located → the postman begins to deliver; According to the address written on the envelope and the telephone number of the recipient and the contact person, the staff will send it to the recipient's unit or home → the recipient.

Extended data:

Precautions:

1. Write the recipient's address on the first line of the envelope. The handwriting should be neat and the place names should be detailed. Place names should be written from provinces, cities and counties to districts, streets and house numbers. If you are writing to the countryside, you should also write down the names of towns and villages. There are six squares in the upper left corner of the envelope, and the postal code of the recipient should be filled in.

Write the recipient's name in the middle of the second line of the envelope. According to the identity of the recipient, you can write "Cong Comrade" or "Cong Mr. (Ms.)" after the name. Do not write titles here, such as "Cong Grandpa".

Write the address and name of the sender on the third line of the envelope. The sender's postal code should be filled in the lower right corner of the envelope. In the case of difficult delivery, the post office can quickly return the letter to the sender according to this information.

4. The front of the envelope is 55mm to 160mm from the right side, and the area 20mm from the bottom is the barcode printing area. Please do not write or sign in this area, so as not to affect the delivery.

5, the words on the envelope can't be written in pencil to prevent ambiguity; You can't write in red because it's impolite.

6. For the letter forwarded by the trustee, the words "face to face" and "trouble" should be written on the envelope, and "XXX" or "XXX please" should be written on the second half of the third line of the envelope.

References:

Baidu Encyclopedia-Letters

Baidu encyclopedia-sending letters