Outlook Font

Question

Outlook Font

Colin 0

Randomly today, the Outlook app stopped allowing me to change fonts. I use a Mac, and my default is Calibri, which is set up properly in the settings, but now when I type, it doesn't use Calibri. Highlighting the text and choosing Calibri doesn't work. I've tried restarting the app and my laptop, but that didn't help. I'm not sure what I can do to fix this issue. Again, the defaults are set up properly.

0 comments

1 answer

Your answer

Answer 1

Ryan-N 14,060 Microsoft External Staff Moderator

Hi Colin,

Welcome to the Microsoft Q&A forum.

Based on your description, I understand that you are unable to change the font to Calibri, even when you highlight the text or select the font directly.

In my test environment, the font-changing feature in Outlook is still working normally.

Please try the steps below and let me know whether the issue is resolved:

Clear Application Data

Step 1: Open Outlook.

Step 2: Go to Help > Clear Application Data.

Uninstall and reinstall Outlook

You may also try uninstalling and reinstalling Outlook to check whether the issue persists.

In addition, please help me verify whether the same issue occurs when using Outlook on the web (Outlook Web App).

I hope this information is helpful. Please follow these steps and let me know if it works for you. If not, we can work together to resolve this.

Thank you for your patience and your understanding. If you have any questions or need further assistance, please feel free to share them in the comments on this post so I can continue to support you.

I look forward to continuing the conversation.

If the answer is helpful, please click "Accept Answer" and kindly upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Colin 0 Reputation points

2026-07-02T12:19:04.0633333+00:00

It actually won't let me change the font at all. As for clearing application data, are you suggesting clearing everything? And what would doing that mean in total? Are there settings I'd have to reapply after that. And no, the same issue doesn't occur when using Outlook on the web.
Colin 0 Reputation points

2026-07-02T12:19:51.2966667+00:00

It actually won't let me change the font at all. As for clearing application data, are you suggesting clearing everything? And what would doing that mean in total? Are there settings I'd have to reapply after that. And no, the same issue doesn't occur when using Outlook on the web.