Who sent the text message of Zhongtong Customs clearance?

Sent by the logistics department or postal department that delivers the goods. Express delivery has already started customs clearance. The logistics department or postal department carrying imported goods by post is responsible for updating the customs clearance status, keeping the goods, sending notification information to the recipients and delivering them. "Customs clearance" refers to the procedures that should be performed in accordance with various laws and regulations when goods and articles are imported, exported or transshipped into or out of a country's customs territory.