In All Mail Folders, in the Navigation Pane, there are three default Search Folders— For Follow Up, Large Mail, and Unread Mail. Any e-mail item with a flag appears in the For Follow Up Search Folder. E-mail items that are larger than 100 kilobytes (KB) appear in the Large Mail Search Folder. All unread e-mail items appear in the Unread Mail Search Folder.

Your Mailbox already contains three default Search Folders, which can be modified or deleted. 

Other storage locations such as Archive Folders or Personal Folders will have their own Search Folders. 

In addition to the default Search Folders, you might want to create new Search Folders. Some examples are Search Folders that find all:

• messages with attachments.
• messages marked as important.
• messages within a specific category.
• meetings attended or organized by a specific person.

Create a new Search Folder

1. In Mail, on the File menu, point to New, and then click Search Folder.
2. Do one of the following:

Use a predefined Search Folder

Note  You can also create a Search Folder from searches you create on the Find Bar or Advanced Find.

Start from the File menu. 

Save a search on the Find Bar. 

Important  When you delete a Search Folder, the e-mail messages shown in the Search Folder are not deleted, because those items are never saved, only viewed, in a Search Folder. However, if you open or select one or more e-mail messages shown in a Search Folder and delete the e-mail messages, the messages will be deleted from the Outlook folder where they are stored.