Thanks for sharing this scam, Mitch. They seem to be increasing day by day. I get so many similar fake emails of invoices usually purporting to be from PayPal of online security like Norton. There is always an exorbitantly high charge mentioned to try to fool you into contacting them to question it.
Because my email address does not have my name in it I can always tell a scam because they address me by that instead of my real name. So I never respond to any. 99% of the time my spam filter catches them anyway.