I'm not really sure if it is a "scam" as it does not require money on your part. But I will say that these types of email in my opinion and experience are not legit. I have seen multiple versions over the years and they do not do what they promise. Do not feel stupid in anyway as I know so many people that say "well I at least had to give it a try" I have not personally experienced anything bad from forwarding the info but I personally think you are better off to let these types of emails go in the future.
Don't waste any more time thinking about this email, you did what so many others have done (including personal friends and family) and I have not heard of anything bad coming of it.
Enjoy the rest of your day and put this behind you.