Parcel, properly packaged and suitable for mailing, is a kind of mail. Post offices are widely distributed and have their own postal routes. The comprehensive use of railway, highway, waterway, aviation and other means of transportation to deliver mail can meet the public's demand for delivering items, especially small and sporadic items. Countries operate postal and parcel services, or adopt the principle of competition with transportation departments, or adopt the principle of appropriate division of labor and mutual cooperation.
EMS express doesn't have to be signed by me, but it can also be signed on behalf of me, as long as the courier calls the recipient and the recipient confirms it. At present, there is no need to sign for EMS in many places. The courier will leave the parcel directly, as long as the phone number is correct.
The principle adopted by our country is: under the premise of not affecting the completion of the main tasks of communication, taking advantage of the characteristics of many postal points, long lines and wide areas, mainly delivering sporadic parcels of individuals, institutions, enterprises and groups, and receiving and sending some commercial parcels appropriately.