INBOX SMTP

I am in the process of starting a new enterprise and am in need of setting up an SMTP service to manage my inbox. I have already researched and narrowed down my choices for a service provider, so I am ready to move to the next step. I require a high level of customization for the setup of my SMTP service so that I can maximize its effectiveness. I am looking for an experienced Freelancer to help me with this. I need someone who can provide a comprehensive setup and follow up support to ensure that my email service is optimized for my enterprise.