If it sounds to good to be true it is a scam.
if it asks you to forward it to all your friends its a hoax.
If it asks you to give your personal bank credit card details it is fraud.

There are plenty of web sites which tell you about these things. please think and before doing what it tells you in any unsolicited email or phone call or letter or text message remember there is no such thing as a free lunch and people will use your good nature against you to make money. Cllr (dont feed the trolls)