Bulk Email Sending Service

Hi- Hi, I require a 3rd party SMTP service that can deliver up to 5 million emails per month, with average send groups of about 200 000 a day. Initial test will be with a couple of email batches (50 000 mails) sent once-off (within one hour). I will provide lists and email content. You must provide: - Email distribution - Unsubscription / Subscription services - Reports - RELIABILITY! Serious bidders only please. Please provide prices in following format 1 - 100 000 mails = $xx 100 - 500 000 mails = $xx 500 000 - 2 000 000 mails = $xx 2 000 000 - 5 000 000 mails = $xx This is for a potential long term (> 6 months) contract.