Granting permissions to Rhinoback to backup Exchange 2003 Mailboxes.

If you encounter an error when attempting to run a Rhinoback mailbox Level backup of Exchange, you may need to grant full mailbox access to the specific account.

**Note** this article assumes that you have already configured the Online Backup Scheduler (Rhinoback) services to run under a specific user account.

The following procudure can be used to allow access to a specific mailbox:

1. Start Active Directory Users and Computers.

2. On the View menu, ensure that the Advanced Features check box is selected.
**Note** This is not necessary on Exchange Server 2003 because of the fact that the Exchange Advanced tab is available by default.

3. Right-click the user whose mailbox you want to give permissions to and choose Properties.  You should grant access to the user account that the Online Backup Scheduler process is running as.

4. On the Exchange Advanced tab, click Mailbox Rights.

5. Notice that the Domain Admins and Enterprise Admins have both been given Deny access to Full Mailbox access.

6. Click Add, click the user or group who you want to have access to this mailbox, and then click OK.

7. Be sure that the user or group is selected in the Name box.

8. In the Permissions list, click Allow next to Full Mailbox Access, and then click OK.

9. Click Ok all the way out.

The following procudure can be used to allow access to a specific mailbox store:

1. Start Exchange System Manager.

2. Drill down to your server object within the appropriate Administrative Group. Expand the server object and find the required mailbox store within the appropriate Storage Group. Right-click it and choose Properties.

3. In the Properties window go to the Security tab.

4. Click Add, click the user or group who you want to have access to the mailboxes, and then click OK.

5. Be sure that the user or group is selected in the Name box.

6. In the Permissions list, click Allow next to Full Control, and then click OK.
**Note** Make sure there is no Deny checkbox selected next to the Send As and Receive As permissions.

7. Click Ok all the way out.

The following procudure can be used to allow access to a specific Excahnge server:

1. Start Exchange System Manager.

2. Drill down to your server object within the appropriate Administrative Group. Right-click it and choose Properties.

3. In the Properties window go to the Security tab.

4. Click Add, click the user or group who you want to have access to the mailboxes, and then click OK.

5. Be sure that the user or group is selected in the Name box.

6. In the Permissions list, click Allow next to Full Control, and then click OK.
**Note** Make sure there is no Deny checkbox selected next to the Send As and Receive As permissions.

7. Click Ok all the way out.