Change the default font in Yahoo Mail

Show off your style by changing the default font type and size in Yahoo Mail. When scrolling through the font options, you'll see a message preview to the right to show you what the font will look like.

  1. Click on the Settings icon Image of the Settings icon. | click on More Settings Image of the More icon..
  2. Click on Writing email.
  3. Under "Default rich-text font" select your preferred font style and size.