In what way does the post office notify the recipient when sending a letter?

Postal enterprises shall deliver mail through address delivery, user collection or other means of consultation with users. Legal link: Postal Law 1, Article 32 Postal enterprises deliver mail by other means such as address delivery, user collection or user consultation.

Organs, enterprises and institutions, residential area management units, etc. It should provide convenience for postal enterprises to deliver mail. If the address of the unit user changes, it shall promptly notify the postal enterprise.

Article 33 Postal enterprises shall return undeliverable mail to the sender.

Undeliverable and unreturnable letters that are unclaimed for more than six months after being confirmed by postal enterprises shall be destroyed by postal enterprises under the supervision of postal administrations. Other undeliverable and unreturnable mails shall be handled in accordance with the provisions of the postal administration department of the State Council; Among them, undeliverable and unreturnable international postal articles shall be handled by the customs in accordance with the provisions of the Customs Law of People's Republic of China (PRC).