To double the font size of the email, press the Up arrow key. Note: If you're composing an email, press Alt+O, Q. To zoom in on the email, press Alt+H, Q, 1. In the message list, navigate to the email and press Enter. For more information, see Change the size of text in Windows 10. You can also change the display settings to make the text on the screen bigger or to make everything on the screen bigger. For more information, refer to Zoom in on an email in the Reading pane. You can also zoom an email the Reading pane. When you move to another email, the body text returns to the default font size. You can only zoom the email you’re currently reading or composing. In this topic Zoom in on an email in its own window To learn more about screen readers, go to How screen readers work with Microsoft Office. To learn how you can get new features faster, join the Office Insider program. New Office 365 features are released gradually to Office 365 subscribers, so your app might not have these features yet. You can also zoom out and return to the original text size. We have tested it with Narrator and JAWS, but it might work with other screen readers as long as they follow common accessibility standards and techniques. Use Outlook with your keyboard and screen reader to zoom in, or enlarge, the text of an email and make it easier to read. Windows DesktopmacOSiOSAndroidOutlook Web app
