on all the emails that I get I am sceptical, unless requested none of the companies use email to notify you, and they never ask for money or passwords or any of that and if they do immediately delete them, I don't read anything that I don't know the sender. And even then, if somehow they have their email hacked into others can send stuff with their names on it, but it usually doesn't sound like then, the greeting will be different. You should know your friends styles and watch for anything that doesn't quiet seem right.