Do I have to have Exchange installed in my Active Directory directory service domain?
A3: You do not have to have Exchange installed to send e-mail messages from the Microsoft Dynamics CRM 3.0 Web client. Exchange E-Mail Router deploys mailbox rules that are used to route the e-mail messages to the appropriate Microsoft Dynamics CRM users. Incoming e-mail messages are created in the Microsoft Dynamics CRM application as e-mail activities.