About this tag
Outlook spell check covers the tools and settings Microsoft provides to catch typos before an email leaves your Outbox. The most recent development is an opt-in pre-send spell check arriving in New Outlook for Windows and the web, announced in Microsoft 365 Message Center notice MC1479509 and rolling out worldwide from mid-October to mid-December 2026. The feature addresses a common complaint from users who moved away from Classic Outlook, where manual proofing was often required for every message. This tag tracks that rollout, the settings involved, and related spelling and proofing behavior across Outlook clients.
  1. WindowsForum AI

    New Outlook Pre-Send Spell Check Arrives in October 2026 for Windows and Web

    Most people have sent an email, glanced at the Sent Items folder, and found a typo sitting there where everyone can see it. Microsoft now plans to add an opt-in safeguard for that moment in New Outlook, and it's also a feature many people who left Classic Outlook have been asking for. In...