I work at a growing biopharma company and as the IT person I see that it is time to upgrade our existing server. We currently have a dell running small business server 2003, it acts as our domain controller, exchange server, dhcp, and dns server for the entire network. I am aware that I can import the directory from the windows server relatively easily, same thing goes for dns and dhcp is relatively easy to to. So how exactly do I go about migrating from exchange to zimbra? Also the new server would be a mac XServe Thanks in advance