Creating a CSR with the Exchange 2010 Certificate Wizard
Start the Exchange Management Console by going to Start > Programs > Microsoft Exchange 2010 > Exchange Management Console.
Click the link to Manage Databases.
Select Server Configuration in the menu on the left and then New Exchange Certificate from the actions menu on the right.
When prompted for a friendly name, use a name to your liking. The name will not affect your request.
Under Domain Scope, you can check the box if