For example, you can create rules to automatically file messages into folders or assign messages to categories.

You can create rules to help you stay organized. by Ed Dennis A rule is an action that is performed automatically on incoming or outgoing messages, based on conditions that you specify. Outlook for Mac 2016 can automatically run a rule on incoming or outgoing messages, based on the conditions you set. Rules can help you sort through it all and get to the most important mail first. With your inbox filling up, you're probably looking for new ways to process all that email. Applies To: Outlook 2016 for Mac Office 365.