LOL!
I started receiving these via snail mail back in the early 90s. I wrote about the scam in an association newsletter I produced at the time when this wasn't so common and had one of our association members call me and say something like:
Him: "Are you sure those are really scams? I got a letter and...blah, blah...did what he asked...blah, blah...."
Me: " I would suggest you check your bank account.
Didn't hear how it finally turned out

Now that I'm in petroleum journalism they are actually niche marketing to me. The letter comes from an official with "The Nigerian National Oil Company..." Nothing like having the right list

Charon