How to Change the Default Font Face and Size in Outlook

You're not stuck with basic fonts in Outlook

When Microsoft Outlook is first installed, it sets the font for composing and reading mail to a small Calibri or Arial font. If this is not your preferred font, you can adjust the font settings to better suit your needs.

Specifically, you can change the default mail font in Outlook to anything you want. There are lots of places to get free fonts. Smaller, fancier, bigger, or conventional fonts—Outlook accepts them all.

How to Change the Default Font and Size in Outlook 2016 and 2013

To change the default font in Outlook 2016 and 2013:

  1. Go to the File > Options menu.
  2. Click or tap the Mail category on the left side.
  3. Choose the Stationery and Fonts... button.
  4. Open Font... in the section that contains the font you want to change. Your options are New mail messages, Replying or forwarding messages, and Composing and reading plain text messages.
    1. If you already have a theme or stationery set up, you can choose Theme... and then the (No Theme) option to disable it.
  5. Choose your preferred font type, style, size, color, and effect.
  6. Choose OK once to finish and then twice more to close out of the Signatures and Stationery window and Outlook's options.

How to Change the Default Font and Size in Outlook 2007 and 2003

  1. Go into the Tools > Options... menu.
  2. Choose the Mail Format tab.
  3. Click Fonts... under Stationery and Fonts.
  4. Use the Font... buttons under New mail messages, Replying or forwarding messages, and Composing and reading plain text messages to choose the desired font faces, sizes, and styles.
    1. In Outlook 2003, use Choose Font... for When composing a new message, When replying and forwarding, and When composing and reading plain text.
  5. Click OK.
    1. In Outlook 2003, if stationery is set as the default under Use this stationery by default, the font specified in it may override the font you have just chosen. You can either adapt the stationery to include your favorite font or instruct Outlook to ignore fonts that are specified in the stationery altogether.
  6. Click OK.

Note: If you set a default color for replies and forwarded emails, but Outlook refuses to use it, try setting up a default signature.