How to Apply Categories in Microsoft Outlook
See Microsoft Outlook: Tips and Tricks for similar articles.
You can use categories with email messages as a way to organize them. See the five steps below to apply categories in Outlook.
This feature works the same in all modern versions of Microsoft Outlook: 2010, 2013, and 2016.
- Select the message you want to categorize.
- From the Home tab of the Ribbon, in the Tags group, select Categorize.

- Select a category from the drop-down list.

- You have the option to rename the category.

- The message or other item will display the category information.

