SymptomsÂ
Consider the following scenario:
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An administrator initiates an eDiscovery search.
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The search is complete, and the results can be previewed without any issue.
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When the results are exported to a target eDiscovery mailbox, the process fails and returns the following error message:​​​​​​​
An unknown error occurred on the search server. Please contact your administrator for assistance.
'Export failed with error type: 'Unauthorized'. Details: The request failed with HTTP status 401: Unauthorized.'.
Resolution
To fix this issue, install the following security updates: