While accessing the mailbox folders, expanding a shared folder, or accessing some secondary mailbox, you may encounter the “Unable to expand the folder, Client operation failed” error. Usually, error messages like “Cannot expand the folder” or “Unable to expand the folder” occur on Outlook Exchange accounts. If you see this error message in Outlook, you […]
This article Unable to expand the folder, Client operation failed – Outlook error first appeared on TheWindowsClub.com.
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