Well, that's an interesting thought, although I don't think many people would get 100,000 e-mails, to be frank. You can always take hypotheticals to an extreme, but I think in the practical sense what really happens is that a very selective number of businesses are involved in this type of business, especially if the idea was that the initial contact would have a number of restrictions on it as to how it would be sent.
With respect, I don't think you would end up with 100,000 companies going to the time and trouble needed to prepare this type of initial message.