Bulk Mail Solution With Multiple SMTPs Urgent

We need a bulk mail solution on our dedicated server with multiple SMTP's, bounced handling, SPF/DKIM etc. It should be a proper setup with inbox delivery as the highest priority. The mail should reach the inbox and not the spam/bulk folder. We have a 100,000 email list of our customers, these customers know where they are receiving their emails from so the spam complains are very low on our email list. We need a good coder who knows how to get to the inbox especially Gmail, Yahoo, Hotmail, AOL. Please do not bid if you do not already have feedback from other projects similar to this. We are looking at OEMPro as our email software if you have any other suggestions please let us know. Note: Long term related projects are possible if the coder is good and you do a good job.