Lotus Notes Server Evaluation

We have a 10+ year old Lotus Notes database app. This application is running on the same server as our E-Mail. We only have about 100 people on e-mail and maybe 20 people actively use this old app daily. I am looking for someone to evaluate the usage on our server in order to determine whether we should have e-mail on a separate server then the other app. I would like the person to do this with me as opposed to them dialing into our server.