the lottery scam is well-known, and it appeals to the dream most people have of getting a huge amount of money for nothing.
it is a ridiculous scam because the companies that run lotteries are BUSINESSES. like all businesses (except nonprofit organisations) their number one objective is to make money, which they do through selling tickets to the lottery.
you can't win a lottery you never entered, this is ridiculous, any company that regularly gives away millions of dollars to complete strangers would not be in business for very long as their shareholders would complain and they would go broke.
basically, in order to 'claim' the winnings you will need to send them money to pay for taxes, insurance, tranfer fees, whatever excuse they think up. send them money and there will be ANOTHER reason you need to send them more money ad infinite until you either run out of cash or realise they are scammers.
the ONLY money that even exists here is the money they want you to send them. delete them.