Microsoft Will Launch New Outlook Spell Check

The update for New Outlook will arrive in October 2026 to help users fix typos in emails.

Updated on Sept. 26, 2026 in Remote Work

Isometric editorial illustration of a stylus and blank paper on a desk, representing refined digital communication tools. — Microsoft announced that a new automatic spell check feature will launch for the New Outlook platform in October 2026. AI Illustration. Upload story photo >

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Starting in October 2026, Microsoft will introduce an automatic spell check feature for New Outlook users. The company is also rolling out a new User Initiated Insights tool for Copilot in Outlook Classic.

Why it matters

These updates are designed to enhance email accuracy and give users more control over when AI assistance is provided. The automatic spell check specifically targets the issue of sending messages containing forgotten typos.

Microsoft is introducing two major software updates across its email platforms in October 2026. While New Outlook will gain automatic spell check, it remains excluded from receiving the User Initiated Insights feature currently being deployed.

The players

Microsoft

Microsoft is a multinational technology corporation that develops the Windows operating system and the Outlook email software suite.

The details

Users will enable the automatic spell check by toggling the feature on within the New Outlook settings menu. Simultaneously, Copilot in Outlook Classic will allow users to select text and choose 'Explain this' to trigger specific AI insights.

May 2026: Microsoft began testing the User Initiated Insights feature in Outlook Classic.
October 2026: The automatic spell check toggle and Copilot insights feature begin rolling out.
Mid-December 2026: The automatic spell check feature will reach wide availability for all New Outlook users.

Market Landscape

The introduction of these features aligns with the ongoing integration of Microsoft Copilot into core workplace productivity tools. This move positions the company to maintain its competitive edge by standardizing AI-driven assistance across its legacy and modern email platforms.

New Outlook users will be able to reduce errors in professional communication by using the new automatic spell check feature. Those relying on Outlook Classic will gain a more manual, controlled approach to using AI insights for their daily correspondence.

The takeaway

Users should prepare to adjust their settings in October to take advantage of these new efficiency tools. Consistently reviewing email drafts remains a best practice, even as automated spell-checking capabilities become more prevalent in software suites.