Also, where's your incentive to not spam? I don't know how many emails I've gotten FALSELY claiming that I've "opted in" to this email. I do know how many have actually taken me OFF their email list when I requested: ZERO.
Before no-call-lists, phone spammers were required to send you copies of their own no-call-policy if you asked in the right manner. I asked each and every phone call spammer for some months. Most of them hung up on me when I said the magic words, "Put me on your no-call list." Of the dozens I said this to, I got exactly ONE written copy of their no-call policy.
I fully expect this service, due to lack of incentives not to spam, to end up spamming. Bad luck for you.