New Outlook Mac changing fonts at autocorrects

Hi @Michel G

Thank you for posting your question in the Q&A Forum. 

I completely understand how frustrating it must be when the font changes unexpectedly after sending emails, especially when you’ve set a custom default font. This issue, along with the overly aggressive editing behavior and the broken Control + Z undo function, often appears after recent updates to Outlook for Mac. Formatting problems like these tend to arise when new features are introduced. 

While we wait for Microsoft to release a permanent fix, please try the following temporary workarounds: 

Disable Connected Experiences 

• In Outlook, go to Settings (or Preferences) > Privacy. 
• Find the Optional Connected Experiences section. 
• Uncheck the option to "Turn on optional connected experiences". 

This should help mitigate some of the issues caused by the new cloud-powered features. 

Clear Application Data 

• Restart Outlook, then go to the Help menu in the top bar. 
• Select Clear Application Data. 

• In the pop‑up window, check the boxes for "Experimental Features" and "Identities". 
• Click the Clear button. Restart Outlook again and test to see if the font and autocorrect behavior improve. 

As you mentioned, the Control + Shift + V shortcut is no longer working as expected. You can try using Command + Shift + V instead. Alternatively, you can go to Edit > Paste and Match Formatting from the menu. 

These workarounds should help alleviate the issues you’re experiencing until a permanent fix is available.

Please note that this is a temporary workaround. We understand it may not be ideal, might not work for everyone, and could potentially need to be repeated after future updates. 

If the issue persists, I recommend submitting feedback directly within Outlook by selecting Help > Give Feedback. This is the most effective way to help Microsoft gather diagnostic data and prioritize a permanent solution for this recurring problem. 

Thank you for your patience and understanding. I hope these workarounds help you maintain your workflow while we await a more permanent fix. 

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".    

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.