To resolve this issue, follow these steps: The Microsoft User Data folder is not located under the ~/Documents folder. The Identity or one of its parent folders are added to the Privacy tab in Spotlight. The Identity name contains special characters such as the slash mark (/). The Outlook 15 Profiles folder is not located under ~/Library/Group Containers/UBF8T346G9.Office/Outlook. The Profile or one of its parent folders are added to the Privacy tab in Spotlight. The Profile name contains special characters such as the slash mark (/). This issue may occur for one of the following reasons: Additionally, when you search for mail items by using the Mac OS native Spotlight Search, your search is unsuccessful. In Microsoft Outlook 2016 for Mac or Office for Mac 2011, you receive a 'No Results' message when you try to search for an email message or apply a filter to a folder, and task items are not displayed in the Tasks folder.
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