I'd think this was spam instead of just a wrong address if it had a URL and wasn't addressed to cdrangsholt@pyra.com (there's no such address):

Dear Christine


I've been checking out your web site and I'm curious about your new product
for dieting. When will it be available and would it be a fat blocker, and
not so much of a stimulant that it would prevent sleeping?


Rosalie


Then again, maybe it's just really sophisticated spam designed to get me to reply, "I think you have the wrong address...but what is this diet product you speak of?" Thinking back to my direct marketing days, that's probably what it is. Sneaky.