2 million messages a week, all of them "opted in"? I can think of no more than a dozen organizations that might actually have several million opted in subscribers. Say weekly newsletters from the largest ISP's, mailings from sites like Yahoo or Amazon, certainly Microsoft proably has that kind of volume, but surely no more than a handful of other organizations.

In all seriousness, I would be interested in learning what kind of legitimate mailing he might be sending out.