Be carefull of such emails.

These are not real. They get your personal information.
I am adding one of the email i got to my mail.
Dear Email User.

YOU HAVE WON PRIZE MONEY OF (£500,000.00 GBP) BY GOOGLE /YAHOO LOTTERY FOR
THE YEAR 2011 ANNUAL LOTTERY PROMOTION WHICH IS ORGANIZED BY GOOGLE /YAHOO
IN CO-OPERATIONS. BILLIONS OF EMAIL ADDRESSES HAVE BEEN SELECTED FROM WORLD
WIDE WEB DIRECTORIES. AND DRAWED BY OUR EMAIL BALLOTING MACHINE AND 13 LUCKY
EMAILS HAS EMERGED AS OUR WINNERS FOR THIS YEAR'S SWEEPSTAKE PROGRAMME.

However you will have to fill and submit the below information to the
events manager

1. Full name..............2. Contact Address........

3. Age....................4. Telephone Number.......

5. Sex....................6. Occupation.............

take note ,you have to send your detail to this email id only
cox.3@live.com

(Contact Events manager Lottery Department)

Name: Mr cox rooney

Email:INDX2@MSN.COM