I have an email list of Millions of emails.
I provide a finance newsletter which I am looking for qualified people to subscribe too.
1) I want the email list which is roughly about 900 Million emails cleaned.
2) I want to send 12Million e-mails a day.
3) I want to be sure that my websites are not blacklisted for spamming
4) I want you to recommend to me what is the best option for maintaining the list once people opt-in so that I can continue sending these emails 8-12 times a month.
5) I would like to make this as automated as possible.
Please provide me with a clear understanding of how this can work.