Bulletproof Server Required

I am in need of bulletproof hosting for bulk emailing website we are setting up. We will be selling bulk email services from this site ie create your email and send it via bulk email. I need multiple CLEAN IP, and ability to send as many blasts per month as our paying users need. If IP get blacklisted I need this IP replaced. Prefer hosting to be overseas. IP Must be clean, and need multiple rotating IPs. Your server must be able to allow bulk emailing by multiple users without shutdown or slowdown. We would require references that can show you can deliver what is required.