What is e-mail address spoofing?
Spammers use spoofing to make e-mail messages appear to have originated from someone or somewhere other than the actual source. It is done by using a fraudulent e-mail return address. Spam might show the e-mail address of a legitimate company yet have a completely different return address. While spoofing is generally associated with Spam, it can be used legitimately – for example to disguise your identity to send an anonymous message as a “whistle-blower” who fears retaliation. It should be noted, however, that spoofing anyone other than yourself is illegal in some jurisdictions.
