Outlook for Mac Autocorrect Issue

Hi @TBrown,

Thank you for taking the time to share the detailed troubleshooting steps you’ve already performed. I understand how disruptive this is, especially when you rely heavily on keyboard shortcuts for your daily work in Outlook.

Based on my investigation, the behavior you’re experiencing is not related to corruption, local configuration, Copilot settings, or leftover application files. Instead, this behavior is specific to the current New Outlook experience on macOS, and at this time there is no documented method to restore full keyboard shortcut functionality.

The Copilot - enabled New Outlook is a fundamentally different application from Legacy Outlook. It is built on a modern, web‑aligned framework, and as a result, many long‑standing macOS keyboard shortcuts have not yet reached full parity. This explains why:

• Keyboard shortcuts continue to work correctly in Word, Excel, and PowerPoint
• Keyboard shortcuts work as expected in Legacy Outlook
• The same shortcuts fail only in New Outlook, even after reinstallation and cleanup

At this time, there is no supported fix or configuration change that restores full keyboard shortcut functionality in New Outlook for Mac. However, the following options may help minimize disruption:

1/ Switch back to Legacy Outlook (recommended):

This is currently the only reliable way to regain full shortcut support. Legacy Outlook remains supported while Microsoft continues to improve parity in New Outlook.

2/ Update New Outlook for Mac

Please ensure New Outlook is fully up to date:

• Open Help > Check for Updates
• Install all available updates until you are on version 16.108.2 or newer
• Fully quit Outlook and relaunch it after updating

Reference: Update history for Office for Mac - Office release notes.

Submit feedback to Microsoft 

As a forum moderator, I hope you understand that I don’t have the ability to modify or escalate product issues directly. However, I strongly recommend submitting your feedback through the Outlook (new) · Community. This is the most effective way to ensure your voice reaches the product team and can be considered for future improvements.    

Once you’ve submitted your feedback, feel free to share the link here. I’d be happy to upvote it to help increase its visibility.  Moreover, if you are unable to submit feedback, please inform me at your convenience. In that case, I will gladly assist by submitting it on your behalf to ensure your request is properly captured.          

Additionally, as other users have raised similar concerns and may not be aware of where to share their feedback, I hope this response helps clarify the situation and suggests a potential next step. Highlighting this information can make it more visible to others in the community who may be facing the same issue, making it easier for them to find guidance and contribute their feedback as well.    

Thank you again for your time and for raising this important usability concern. If you have any further questions or need additional assistance, please don’t hesitate to reach out.    

Wishing you a smooth rest of your day.   

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