Exchange Online: Unlimited Archiving is no longer Unlimited

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Contributor
MC288051: Microsoft has added size restrictions to Unlimited Archiving (Aka Auto-Expanding Archiving). The change will take effect beginning November 1, 2021. Once this limit takes effect, your users will not be able to extend their online archives beyond 1.5TB.

You should check the size of archives in your organization if you are concerned that they might be close to the limit.

To check Archive mailbox size, you can use the Get-MailboxStatistics cmdlet or the below script:

https://o365reports.com/2021/03/30/export-office-365-archive-mailbox-size-report-using-powershell

1 Reply
My healthcare customer is not happy about this as they need to store email for 10 years and this affects their compliance plans. Are there other options for clients to allow for more storage?