Hello Louis-0523,
Thank you for reaching out to Microsoft Q&A, and I understand how annoying it is when the software tries to force a stylistic rule that you do not use, especially when the buttons designed to stop it simply ignore your clicks.
To give you the honest truth right away: In Outlook for Mac, the Microsoft Editor engine hardcodes standard French typographic rules (which strictly require a non-breaking space before ?, !, :, and ;). Because this applies language‑specific typographic rules as part of French proofing:
- Clicking "Stop checking for this" does not persist Editor exclusions.
- Resetting your settings does not change language-driven rules.
- The "AutoFormat As You Type" menu you read about online is a Windows-only feature; the Mac version does not have this UI option unlocked.
Because Microsoft has not built a toggle to disable just this specific rule on macOS, there is no perfect solution that gives you exactly what you want. However, here are the two most effective workarounds you can use in the meantime:
Option 1: Change the proofing language to English while typing
By temporarily switching the language to English, Outlook will stop trying to enforce French typographic spacing entirely.
- While composing an email, go to the top menu bar and click Edit > Spelling and Grammar> Language> Language...
- Select English (or check the box to Detect language automatically).
- The Trade-off: French grammar rules will not be applied while English is active.
Option 2: Disable grammar checking globally
If you only care about catching spelling mistakes (typos) and do not need complex grammar suggestions, you can turn off the grammar engine. This stops the grammar-based spacing suggestions from appearing.
- Go to **Outlook (**next to the Apple icon) > Settings > Spelling & Grammar. (type it in the search box on the top right)
- Uncheck the box for Check grammar as you type.
- The Trade-off: You will receive no grammar suggestions in any language, though standard spell-check will still function normally.
Share Your Feedback
Since this is a crucial feature for the Mac client, I highly encourage you to provide feedback directly to the development team by clicking Help > Give Feedback inside the Outlook app. Microsoft prioritizes Mac feature parity based heavily on direct user requests!
I hope this explanation helps clarify how Outlook handles these language rules behind the scenes. Please let me know if you need any further assistance!