Previously, auto expanding archive mailbox expansion was supported only up to 1.5 TB, after which mailboxes would become inoperative. Archive mailboxes can now automatically expand beyond the 1.5 TB limit, ensuring uninterrupted retention and enabling scalable archive growth as storage thresholds are reached. This capability to expand archive beyond 1.5 TB will be available to customers with eligible E5 licenses.
Roadmap › 560820
Microsoft Purview: Data Lifecycle Management – Increase in expansion limit for auto expanding archive beyond 1.5TB
- General availability
- 2026-10
- Preview
- —
- Added
- 23 Apr 2026
- Last modified
- 02 Sep 2026 22:56 UTC
- First archived
- 25 Aug 2026
- Release rings
- General Availability
- Clouds
- Worldwide (Standard Multi-Tenant)