Checking it out on the internet, at some place with a name like "scam alert," it looks like a lot of others have had the same good fortune. So that's an interesting coincidence.
One of the sentences in the letter was very interesting:
I am the only one who knows of this situation at this time, and good fortune has blessed and planted you into the center of relevance in life.Good fortune has blessed and planted me "into the center of relevance in life." I believe this is the first time I've ever been anywhere near the center of relevance in life. I've spent a lot of time at the margins, quite far from the center of relevance in life. But now I have been planted into it, I'm doing OK!