is this a scam

Well.. it think it a scam, first.. do the letter write down what reason you won ? and their company address, telephone no.. and more proof details They probably need you to buy something to redeem it and those are scam. If you dun have much time just throw the letter or report to nearest police station. Remember don't ever give any personal documents to them.

I don't really know if it was a scam or not. But you should check it first. There must be some contact information like phone number or address informed. Try to contact them but ask something wrong, like "Do I really win 600,000 euros ?" instead of asking the right amount. The second you may search from the internet or the telephone company if the issuer company do exist. And if the mail is asking you to deposit some fund or input your bank account, don't do it. It must be a scam.

Yes, it's a Euro Lotto Scam and the best thing he can do is to screw it up and throw it away. There's a site online which tells you of the different scams there are. They are pfishing scams and once they get your bank details, they pfish your account and you will find yourself in a heap of trouble. So please, throw it away and forget about it. Here is a URL where you can look it up, if you want to. They're identity thiefs. http://worldwidespam.info/phishing/ Sorry to be the bearer of bad news, but better you know now. Brightest Blessings.