we do not have access to the data. We were informed while negotiating the service, that all the players on the list(s) have opted in.
wait wait wait. Zing! Somebody correct me if I am wrong but I think you just admitted your company spams.
You are not using your own list? You did not provide the list to the emailers? You are not emailing your own customers?
But everyone on the list is supposed to have opted in. To what exactly?