Spoofed Email – Spoofing refers to email that appears to have been sent from someone other than the real sender. Virus writers and individuals who send junk email or "spam", typically want the email to appear to be from an email address that is not their own. Thus, the email cannot be traced back to the originator.
It is often impossible to know if you have received a spoof however to the careful observer there are several clues that help to separate a spoof from a legitimate communication.
Typically, you will know that your email has been spoofed if:
1) An email is from a commercial entity and the message requests that you provide your log in ID or your account will be suspended it is likely a spoofed email. Reputable commercial entities regularly contact their customers by email but they don't ask for log in ID because they already have it.
3) You receive an email with a text file indicates a virus had been detected and removed/replaced
4) You receive a reply to an email from someone you never sent a message to
5) You receive an error message from a system administrator that you sent an infected file or that your message could not be sent to a particular user
6) You receive an email with a blank message.