I was not aware of signature required for this delivery. I need to have a window of time so I can be sure to be home when arriving.

I would like to send my friend a package to Mainland China. I wonder if it is required the receiver as written to sign when the package delivered. In case that he is not at home when delivery, is it possible to let others in the house sign for package receiving?

Does "Registered Mail" mean I have to give my signature when receiving delivery? Because if it does, packet won't be delivered to my mailbox, instead I have to go to the local post office to get it so that they can have my signature. Practice of requiring signatures even for small value deliveries is very inconvenient.