The parcel sent abroad needs to go through the foreign customs, the customs inspection package basically is the form of spot check.

If the customs considers that your package is special (e.g. bulky, heavy or sensitive), the general customs will proactively contact the recipient for invoice or customs clearance.

The cost of the package returned or destroyed will be borne by the addressee on its own due to the lack of contact with the addressee or the addressee not cooperating with the customs clearance.