Hello! I registered on fiverr last month, hoping to find some design-related job opportunities. I recently received a message from a requester about thumbnail production. He said in the message that since he recently moved from Russia to Germany, he hopes that I will give him my email address so that he can send me the materials needed for production before the transaction? I don’t quite understand. Does it violate the rules of the website if I leave him my email address? thank you all!