XCLN: Error Message: The Set of Folders Could Not Be Opened

RESOLUTION

Verify that you are logged into a Windows NT domain account that has access permissions to the mailbox specified in the profile.

If you are not logging into a Windows NT domain account that has access to the mailbox, follow these steps:

1. Open the Control Panel.
2. Click the Mail and Fax icon.
3. Click the Show Profiles button.
4. Select the profile that you are using.
5. Click properties.
6. Select Microsoft Exchange Server.
7. Click properties.
8. Click the Advanced tab.
9. Make sure the Use Network Security During Logon option is not checked.

The next time you launch a Microsoft Exchange client for Windows, you will be prompted to enter a user name, domain name, and password. This Windows NT account must have access permissions to the mailbox on the Microsoft Exchange Server.