Office 365 (Apple Mail) - Change View Settings
This document explains how to change view settings using Apple Mail. These instructions are for Mac OS 10.9, but are likely to be similar for Mac OS 10.5-8.
To change view settings:
- To customize the toolbar, go to View -> Customize Toolbar... Change it as you would like, and click Done.
- To set more viewing preferences, go to Mail -> Preferences -> Viewing.