Legal analysis: When an administrative agency delivers relevant materials by express delivery, the delivery receipt will have the signature of the relevant person, and the express delivery practitioner will indicate on the delivery receipt that the signature person is the recipient of delivery If the delivery receipt is signed by staff in the person's office, mailing and receiving room, or duty room, unless the recipient has evidence to prove that the signature was forged by the courier, we should determine that the delivery receipt is legal and valid.

Legal basis: "Several Provisions of the Supreme People's Court on the Service of Civil Litigation Documents by Court Special Delivery" Article 8 The recipient and his/her agent shall sign and stamp the email return receipt Or seal. The recipient and his/her agent should present his/her valid identity document when signing for the receipt and fill in the ID number on the receipt. However, in practice, the certificate number is rarely filled in on the return receipt. Since the court does not have the authority to compel the recipient or recipient to provide identification when making direct service, it is not practical in practice to require postal personnel to require the other party to provide identification and fill in a number when delivering by mail. Many collectors refused to accept the mails and the mails were returned. In addition, the recipient did not indicate his relationship with the recipient when signing for the receipt. Whether it was received by an adult family member living with him or his designated person cannot be reflected on the email return receipt, and the court still needs to further ascertain.