Bulk Email Process For Email Marketing

We need to assign a complete bulk email process to some expert worker. We are expecting around 3 to 5 lacs email per month with good accuracy. Our Responsibility : - To provide a mailer content Worker Responsibility : - Use specific list/customer data as per our suggested target segment. - Detailed daily report(number of email send, failed email count, email was read by receiver etc) - 3 to 5 lacs email in a month. This should be a continuous process if we see the positive resilts.