Although email is a useful tool, it has its problems. Primarily, that it can
easily be forged or faked. All too often, you might suspect that a message
you've received is not all that it seems. Maybe, for example, it appears to
be from a friend of yours who's in trouble, but you suspect that it might be
a scam. Here's a handy tool to help put your mind at rest (or to confirm your
worst fears). Paste the header from the email into the form on this website
and you'll get a detailed report about where the message actually came from.
http://www.techsupportalert.com/content/simple-online-tool-helps-verify-suspicious-emails.htm