Microsoft 365 Roadmap

Outlook
1-year and 2-year options for email sync window (Offline settings)

Feature details and release plans from a build snapshot of Microsoft's official roadmap feed.

All Microsoft 365 updates
Product
Outlook
Release status
In development
RSS publication

Feature overview

In the new Outlook for Windows, users can choose to save 1 year or 2 years of email on their device for offline access. This expands the existing offline settings and allows users to access more email when they are not connected to the internet. The new options are available under Settings > General > Offline > Days of email to save, giving users greater flexibility based on their storage and offline needs."

Expected release date

November CY2026

Source: Microsoft 365 Roadmap RSS (build snapshot) Feature ID: 560535

RSS snapshot built . Refreshed on rebuild and deployment.

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