Do not believe such mails. I don't know how they do this. But as far as i have read from newspapers and saw in news,it is said that people imposing as manager of banks or some other lotteries will send you mail to deposit some amount and get the lottery amount. When they get the money,they escape with it.
Excerpt from uk national lottery website:These scams work in two ways:Method 1: Persuade the victim to part with personal information to allow the scammers to carry out identity theft.Method
2: Persuade the victim to part with money as an upfront payment in
order to release a winning lottery prize which does not exist.
Another excerpt from Uk national lottery website:
- If the email says 'Winning Notification' or 'Lottery Sweep Stake' in
the text, the email you've received is not from The National Lottery;
There is no need to contact us if you have received a lottery-related scam (fraudulent) email.
- We don't tell players how much they've won in an email;
- We don't ask for any personal information like name, address or bank details in an email.
For more info: http://www.national-lottery.co.uk/player/p/help/yoursecurity/commonscams.ftl