Assume that there are more than 90 users in a Microsoft Exchange Server 2013 environment. Their primary mailboxes are located in different on-premises databases, and their Archive mailboxes are located in the cloud. When you run an eDiscovery estimate search, you receive an error message that looks something like:
[FailedToGetRootFolders] Export failed with error type: 'FailedToGetRootFolders'. Message: ErrorInternalServerError : An internal server error occurred. The operation failed.
Additionally, you may experience one or both of the following issues:
The Archive databases fail, and you receive an error message in Microsoft Outlook that looks something like:
Cannot expand the folder. The set of folders cannot be opened. Microsoft Exchange is not available. Either there are network problems or the Exchange server is down for maintenance.
When you run the Test-ArchiveConnectivity cmdlet to verify archive functionality, you receive the following result:
The Autodiscover request failed.
This is a known issue in Exchange Server 2013.
To fix this issue, install cumulative update 10 for Exchange Server 2013.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.