I got almost the same mail word for word from a different sender. I played it cagy with him as it sounded too good to be true. Then I noticed that the mail address kept changing and that was when I started looking around. I contacted the World Bank as there was nothing on their website and they did not know about it (the scam). I have since sent them a link to this forum for them to read.
It is good to be here and inform those that could get taken.
Have a great day
Bernard