It is a scam. If he sent his bank details, contact the bank
immediately and close / re-open the accounts. Tell your friend to delete the email. There is no company titled International Lotter Disbursement Payments Office and no Lotter Disbursement. Tell him to stop any communication with the email sender. You can pass the below information to your friend.
(a) You cannot win a lottery that you have never purchased a ticket for. Some emails say that you do not have to, but a Lottery by definition is a commercial enterprise that REQUIRES people to buy tickets in order for there to be any prize money. In short, they are lying.
(b) A fraudulent lottery will ask for a fee to allow your 'winnings' to be sent to you. In all cases it is this fee that is the scam. If you pay the money, you loose it forever, and they may come back and ask for more.
(c) Genuine organizations who purport to handle vast sums of money do not use free webmail providers such as yahoo, msn, hotmail etc. It is one of the ways the fraudsters can remain anonymous and untraceable.
{d}There is no such thing as winning a lottery based on your email address. (such as a computer ballot)
(e) Legitimate lotteries do not notify winners. It is the responsibility of the winner to notify the lottery.
You can find a lot of information right here about fake lotteries.
A brief description of Lottery Fraud is here:-
http://www.fraudwatchers.org/forums/...read.php?t=255
A more in-depth view of a Lottery Fraud is here:-
http://www.fraudwatchers.org/forums/...read.php?t=229
We have some Lottery Fraud example emails here:-
http://www.fraudwatchers.org/forums/...splay.php?f=39
ticket.