I have no idea how he got my email address because I don't know him and there is nothing about the content of his emails that interest me. I wish Comcast would let me block him. I'm considering emailing him back and asking him to take me off his list (it would be so awkward though).
It's bad enough that I'm getting emails from my missionary uncle who sends things like poems about how he doesn't like Halloween because it's so "dark." (Uncle Brian, I love you, but seriously.)