(Updated) Spell check before sending emails in new Outlook

Updated October 6, 2026: We have updated the content. Thank you for your patience. 

[What and Why:]

If you don’t want to check spelling manually for every message—or you’re worried you might forget!—you can set Outlook to check spelling for you every time before sending emails.

[Rollout Schedule:]

General Availability (Worldwide): We will begin rolling out on mid-November 2026 and expect to complete by early December 2026.

Targeted Release (Worldwide): We will begin rolling out on mid-October 2026 and expect to complete by late October 2026.

General Availability (GCC, GCC High, DoD): We will begin rolling out on mid-November 2026 and expect to complete by mid-December 2026.

[Impact on Your Organization:]

Who is affected:

• Users of new Outlook for Windows and Outlook on the web.
• Help desk and training teams that support Outlook messaging experiences.

Platforms/Services:

• Exchange Online.
• New Outlook for Windows and Outlook on the web.

What will happen:

• Users can configure Outlook to check spelling automatically before sending email.
• This can help reduce spelling mistakes in sent messages without requiring users to manually start spell check for each message.
• The capability will roll out automatically during the scheduled rollout window.
• This feature requires Connected Experiences to be enabled. Users who have Connected Experiences disabled will not be able to use automatic spell checking before sending email.

[Action Required/Recommendations:]

• Confirm that your organization’s privacy policies allow the use of connected experiences in Office.
• Inform users that they can enable spell check before sending if they want Outlook to review spelling automatically.
• Update internal Outlook training or help desk guidance if it describes message composition settings.

[Compliance considerations:]

This feature requires Connected Experiences in Office. Review as appropriate for your organization.