The new email scam is circulating and it is intended to deceive users into clicking on a non-Facebook link that could potentially be malicious
Facebook email scam – You have three lost messages
QUOTE: Or, to put it another way, you didn’t. However, spam mail doing the rounds wants you to think otherwise. “You have three lost messages on Facebook, to recover the messages please follow the link below.” The links just go to the usual advert / viagra junk. What’s kind of funny here is that an older version of this campaign claimed you were missing one message. Obviously the spammers decided to up the ante so now you have a whole three messages lost to the void.