Working with backup sets : Microsoft Exchange Server backup sets (Windows) : Creating a Microsoft Exchange Server backup set : Specifying the server
 
Specifying the server
The Select a Microsoft Exchange Server to backup screen appears with a list of servers available on the network.
NOTE:  You can also type the server name in the Path box once you have clicked on the network (ex: \\server_name). You must supply the fully qualified domain name of the Exchange computer (i.e. Do not supply the server's IP address.)
1. Browse and select the server you want to back up. For clustered Exchange servers, select the Exchange cluster name.
If you select an individual node’s name, you will get an error message:
Error returned from callback function call.
By default, your current user login to the DS-Client will be used to connect to the selected computer and database:
2. Select the option Ask for Network Credentials to specify alternate credentials, and click Next.
See “To provide the credentials for the selected computer, select Ask for Network Credentials. You will be prompted to specify the credentials after clicking Next.”.
3. In the Enter Network Credentials screen, enter the credentials and click OK.