Search for mail providers who have used to participate in online casino - priority for online casino casino users mail

I am currently looking for a volume of mail from users who have participated in online casino. I focus on quality over quantity. Testing required Test for 3 days, send 1500 emails a day to the user, do this continuously for 3 days, and we will test the effect from the user after 3 days from the day you send the email to the user. . A total of 4500 mails are sent, If we have more than 50 users, you will approve and we will proceed to hire you to send mail in larger quantities. If you already have a huge library of users who used to join the casino, over 1 million email addresses are being stored. Note: What we need is quality, not quantity, don't get it wrong. Costs, we can discuss together, we are very comfortable, as long as you meet what we ask, everything will be completely fine.