RM560820 - Microsoft Purview: Data Lifecycle Management – Increase in expansion limit for auto expanding archive beyond 1.5TB

Microsoft 365 Roadmap

Summary

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.

Last Updated

Jun 26, 2026

Published Apr 23, 2026

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Status

In development

Release

General Availability

Platforms

Web

Service

Microsoft Purview

Tag

In development
General Availability
Worldwide (Standard Multi-Tenant)

Cloud

Worldwide (Standard Multi-Tenant)

Description

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.

GA date: July CY2026

Version history

2 versions tracked

Updated 1 time since Apr 23, 2026. Microsoft Message Center only ever shows the current version; this archive preserves the history.

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  1. Jun 26, 2026 · 10:01 PMLatest · v2

    Changed: Body

  2. Apr 23, 2026 · 11:15 PMOriginal · v1

    Changed: Initial version