A Search Folder is a virtual folder that provides a view of all email items that match specific search criteria.
This knowledge article demonstrates how to use the New Search Folder feature in Microsoft Outlook 2016.
Step 1
Click Folder tab then click New Search Folder.

Step 2
Select the type of Search Folder you wish to create such as “Mail from specific people”.

Step 3
If you select the “Mail from specific people” option, click Choose.

Step 4
Type in the name to search for, click From and then click OK.

Step 5
Click OK.

You’ll now see a new search folder under Search Folders in the Folder Pane. Each time you click on the folder, it will perform the search.

Step 6
To rename a search folder, click Rename Folder on the Folder tab.

Step 7
Type in the new name and press Enter.

Step 8
To delete a search folder, click Delete Folder on the Folder tab.

Step 9
Click Yes. Note: Deleting the folder does not delete the contents of the folder.
