I found out the hard way--I loss money and didn't realize the 'paypal' emails were fake.
The real paypal will never hold funds waiting for confirmation from 'Moneygram'. Payapl and Moneygram are competitors and don't work together.
I have since gotten 3 more email inquiries.
Each one comes from someone using no capital letters in their name and always asks if I accept paypal in the first inquiry.
The second email usually mentions they are buying the dress as a gift for someone and says not to worry about shipping because they have a 'pick-up agent'.
If you get a third it asks if they can send you extra money to cover the cost of this 'pick-up agent' and pay them through moneygram, since they can't access moneygram (the excuse I got was that they were an oceanographer at sea).
When I respond that I prefer to take care of shipping it myself and won't send any money without confirmation of funds from paypal, I usually don't receive any more emails.
A true buyer will ask specific questions, and if a payment is sent through paypal your paypal account will show it. Paypal does not require your address or phone number to process payment, just your email.
I don't think there is such a thing as a 'pick-up agent'. If there is, they don't cost almost equal to what you are selling your dress for.
I hope this helps. Every inquiry I have received about my dresses has been from this scammer.