How my email become part of the spam emails? (#2)

The following email from Motorola Email Promotion could potentially be part of a method to accumulate emails for email database (viral marketing).

Check out other spam potentials.

Dear winner,

From the online email ballot promotions held by
Motorola Company, You have been awarded £400,000.00.
Reply this email for more information
(motopr42@hotmail.com).

Thanks



Updates:

Check out the full reply here.

I am rich now.

Thanks for the reply.