What information do I need to write on the envelope? Can I write the contact number of the recipient?

Write the address and name of the recipient, as well as two postcodes, and the telephone number cannot be written.

It is ok to write the recipient's phone number on the envelope, usually under the name. But writing the phone number is unnecessary and useless. Except that the courier will contact the recipient by phone, the postal service will not contact the recipient by phone even if the telephone number is written.

How to fill in domestic envelopes: write the postal code, address and name of the recipient in the upper part, the address and name of the writer in the lower part, and the postal code of the other party in the upper left corner of the postal code.

The first line is aligned to the left, leaving two spaces for the address of the other party. The second line of the envelope says the recipient's name. The third line is aligned with the writer's address. On the fourth line of the envelope, the name of China's writer is written at the bottom. You can also add the contact number and the author's postal code in the lower right corner.

Fill in an envelope written abroad: the upper part of the envelope contains the sender's postal code, address and name, and the lower part contains the recipient's address, name and postal code.

Or write the sender's postal code, address and name on the front of the envelope and the recipient's postal code, address and name on the back.

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