B2B BULK EMAILING

We are a business-to-business company and we are working on a project of using mass-emailing. We would like to team with an emarketing specialist to handle our emailing operations and email list management We are also interested in international B2B opt-in lists. We are looking for a provider who can help us organize mass emailing with his server on a long terme (minimum 6 months) We also need html design for 3 html newsletter templates We plan to send about 50,000 emails per day (1-2 million per month) and handle unsubcriptions requests and bad email lists. We are in fully legitimate business (lighting) and content is absolutely clean. Please advise your best offer. Only proven professionnals with references will be considered.