Email Marketing Server How Much Should I Charge For IT Work?

How much should I charge for IT work? - email marketing server

This man asked me for a date with me to build a mail server for your business and want to know how much it costs per month to receive them. How do I determine the market rate for a server management part time? Worked full time and another place to be on call for that type. It would be a new experience for me. He knows that I have not done before, but I think that's all I can find.