Major update for Exchange Online and Microsoft Purview administrators: Microsoft is increasing the auto-expanding archive limit starting mid-October!

Key Benefits for IT Administrators:

 🔄 Automatic Growth: When storage reaches ~90%, auxiliary archives are instantly provisioned.

 ⚖️ Compliance Ready: Ideal for meeting regulatory data retention requirements without juggling multiple mailboxes.

 ☁️ Limitless Scalability: Provides up to 1.5 TB of archive storage, reducing administrative overhead.

 User-Friendly: Totally transparent to end-users in Outlook and Outlook on the web.

If your organization manages long-term retention policies, legal holds, or high-volume mailboxes pushing existing limits, this expansion eliminates the need for manual support requests or messy PST split workarounds.

Enable it tenant-wide in PowerShell:

Set-OrganizationConfig -AutoExpandingArchive

Are you already tracking mailboxes close to the current archive cap?

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