As mj said in reply, we were worried about the face our clients used the artwork, even if it wasn't their servers. In our mind it became quite complicated as w

As mj said in reply, we were worried about the face our clients used the artwork, even if it wasn't their servers. In our mind it became quite complicated as we wernt sending them the ultimate files, just responding to their requests. So I think it's safe. But I am not sure how wow servers work.