Outlook Font Size
Start by opening Microsoft Outlook. In the program window, go to the File tab and click on it. Beneath it, you will find a range of options. Click on the one labeled “Options.”
Choose Mail Category
On the left-hand side, you will find a bunch of categories. Select the one labeled “Mail,” and another set of options will appear on your screen.
Select the Stationery and Fonts Option
Select the option labeled “Stationery and Fonts” from the list of options that appears on the screen.
Change the Fonts
You will now be able to change fonts in a variety of sections. Under each section you want to change, simply select the option labeled “Fonts.” The section labeled “New mail messages” allows you to change Outlook inbox font size. The section labeled “Replying or forwarding messages” enables you to change the font that appears whenever you forward an email or respond to it. The section labeled “Composing and reading plain text messages” allows you to change the appearance of plain text messages, but only from your own perspective. When you send plain text messages to others, they will still receive them in the plain text format.