I have had this happen before, and I replied out of curiosity. Here is what is going to happen...they will send you a fake email that looks like it is coming from Paypal saying that you have the money. A few minutes later they will send you another fake email saying the money is being held by Paypal until you provide them with a shipping number and signature from the person receiving the item. Of course when you login to your Paypal there will be no money there.
They are Nigerians sending out mas emails in the hope that a few idiots will send the item without confirming that the money is actually in their Paypal account. When I got those emails I emailed them back telling them to suck my cock, and a few days later got a fake email from the FBI (it came from an address like like
[email protected]) saying thay i would be arrested if I didn't ship the item, and the whole email was misspelled "Engrish". If they fucking bombed Nigeria I wouldn't shed a single tear...