Bulk email marketing

I want to send bulk emails 100,000 in batches. I will first for the contract for 50,000 emails only. If the delivery hitting the inbox or promotions it will be considered valid. If the delivery hits spam or causes the problem to the main domain it will be considered as :no delivery. You will have to hit inbox or promotions 80-90% of the times. You will not use our SMTP or our Domain name.