This article explains how to print text in different font sizes in Microsoft Outlook by making one small change before you press the Print button. The instructions apply to Outlook 2019 through 2010 and Outlook for Microsoft 365.
How to Quickly Change Font Size and Typeface in Microsoft Outlook
One reason to print larger text is to make really small text much larger before you print the email, so that the printed page is easier to read. Or maybe you're in the opposite situation, where you need to shrink large text so that the email fits on the page.
Double-click the email in Outlook to open it in a new window.
On the Message tab, go to the Move group and select Actions.
