This email claims to be from Facebook but take a closer look. The From address is "notification" followed by a bizarre string of characters that could pass as a Microsoft validation code. The domain is facebookspot.com, not facebook.com. You can't tell from the screen capture but each link in the email: the facebook.com/profile.php, the inbox is full, the Frequently Asked Questions, and the unsubscribe all point to a web page nefariously placed on a legitimate web site. I downloaded that web page without executing it and found it contains code that redirects you to another site that is registered in St Petersburg, Russia. And that site claims to be selling drugs at cut rate prices.
Click to make the image large enough to see.
So...yeah...I got this really good deal on vicodin.