Bulk Email Sending SMTP Server or Web Based Mailing Service

I require a non-blacklisted SMTP relay service that can deliver up to 5 million emails per month, with average send groups of about 200-400K per day on days which I mail. I want SMTP server or Web Accessed Bulk Email Sending Server to do this. Servers must have good performance and 24/7 working- and IPS must not be blacklisted. They must be able to handle heavy e-mail traffic for heavy load task If your server can not deliver high in-box rates, you must refund the money 100% Please bid the cost to send 5 million emails per month I 2would like to be able to conduct an Initial test (50K mails) sent once and tracked for results. I will provide lists and email content. You must provide: - Email distribution - Unsubscription / Subscription services - Reports - RELIABILITY! Serious bidders only please. This is for a potential long term (> 6 months) project for the right company/provider.