I am redesigning the network infrastructure of a company that has the following.
Corporate office - 40 to 50 users connected with a T1 1.5mb
Production Data Center - No users 10mb Connection.
Remote Office 1 - 2 to 4 users connected with DSL
Remote Office 2 - 2 to 4 users connected with DSL
VPN Client connections
Should I locate the Exchange Server at the corporate office or at the Data Center? (Every user should have access to a full featured Outlook Exchange client) Is it possible to have a Production Exchange server at the datacenter which then replicates to an exchange server at the corporate office over a VPN tunnel? Ideally I would like users at the corporate office connect to the corporate exchange server then if that is down for some reason they will be directed to the Production Exchange server. All the other users (Remote offices and VPN Clients) will connect directly to the Production Exchange server. If this is possible what would be the best way to configure AD Forest/Domains and Exchange.
Thanks in advanced,