Ask Al: Help prevent a bad thing!

Terry writes, "My manager wants to take all of our emails addresses in our "pending" list (ones that haven't clicked the link for the double opt-in confirmation) and convert all 10,000+ of those addresses to active and start mailing them. My problem is no matter what I say he feels that he has the right to do it. Is there anyway you can help convince him that this is bad of business, will get blacklisted which will then get us booted from our ESP and I believe that this could even affect our capabilities of sending emails through our company email accounts. What can I do to make him see the light?"