Click on Save afterwards, and the inbox will be reloaded with the new settings.Change that to Classic and Small for example, or Classic Wide and Medium,or experiment with the other font types and sizes that are available here. Note that this will have the consequence that you see less emails at once on the screen. You can change that to regular or relaxed to increase the room for each list item on the page. Here you find two preferences that are responsible for the display of emails on Yahoo! Mail. This should open an overlay window that displays the preferences. Move your mouse cursor over the settings icon in the top right corner next to your Yahoo! username.
