Microsoft Purview: Data Lifecycle Management-Auto-Archive for Exchange Online

Originally posted by Microsoft Oct 24, 2025 Uncategorized 0 Comments

A new capability called Auto-Archiving for Exchange Online will enter public preview in November 2025 (currently under private preview for selected customers). When a user’s mailbox utilization exceeds 95% of its quota and archive mailbox is present, this feature automatically moves the oldest items excluding those tagged with “Never Move to Archive” from the primary mailbox to the archive mailbox to prevent mail flow disruptions by keeping usage below the safe threshold of 95% of mailbox quota.

Product
Release phase Preview
Release date January CY2026
Preview date: November CY2025
Platform Web
Cloud Instance Worldwide (Standard Multi-Tenant)
Created 2025-10-23
Roadmap ID 515172
Roadmap Link https://www.microsoft.com/microsoft-365/roadmap?id=515172

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Joao Ferreira

I've been working with Microsoft Technologies over the last ten years, mainly focused on creating collaboration and productivity solutions that drive the adoption of Microsoft Modern Workplace.

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