Change default font size in outlook mail app

To change the default font size in the Outlook Mail app on Windows 10, you can follow these steps:

Method 1: Change font size for all emails

  1. Open the Outlook Mail app.
  2. Click on the "Settings" icon (represented by three horizontal lines) in the top left corner of the app.
  3. Click on "View settings" from the dropdown menu.
  4. Scroll down to the "Reading" section.
  5. Under "Font size", select the desired font size from the dropdown menu. You can choose from a range of sizes, including Small, Medium, Large, and Extra Large.
  6. Click "Save" to apply the changes.

Method 2: Change font size for a specific email

  1. Open the email you want to change the font size for.
  2. Click on the "Format Text" button in the toolbar above the email body.
  3. Select "Font" from the dropdown menu.
  4. In the "Font" dialog box, select the desired font size from the "Size" dropdown menu.
  5. Click "OK" to apply the changes.

Method 3: Change font size using the Registry Editor (advanced users only)

  1. Press the Windows key + R to open the Run dialog box.
  2. Type "regedit" and press Enter to open the Registry Editor.
  3. Navigate to the following key: HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Options\Mail
  4. Create a new string value named "Font Size" and set its value to the desired font size (e.g., "12" for 12-point font).
  5. Close the Registry Editor and restart the Outlook Mail app.

Note: The font size change may not be immediately applied, so you may need to restart the app or log out and log back in to see the changes take effect.