I have a single exchange 2003 enterprise server. We are expanding to four locations. I would like to:
First, upgrade this exchange to a better server.
Second, install exchange servers at each location.
I would like to have the one main exchange 2003 enterprise with my antivirus, anti-spam, and blackberry in that location. Then have in each of the other sites their own exchange server. So the email would always be routed through the main site and through the filters.
The sites are connected by VPN tunnels so they are all the same forest and domain just separate sites with their own subnet.
Any ideas on where to begin?