Microsoft 365 Roadmap

Outlook
Support for Auto-Expanding Archives

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

All Microsoft 365 updates
Product
Outlook
Release status
Launched
RSS publication

Feature overview

Auto-Expanding Archives are a component that provides customers the ability to grow their mailbox archives over the normal 100 GB quota limit.

Expected release date

March CY2026
Preview date: February CY2026

Source: Microsoft 365 Roadmap RSS (build snapshot) Feature ID: 395793

RSS snapshot built . Refreshed on rebuild and deployment.

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