Forum Discussion
Need to Purge DiscoveryHolds Data from Archive Mailbox in Exchange Online
Thanks andydavid1 and VasilMichev for your help.
The issue has now been resolved.
The root cause was that ComplianceTagHoldApplied was set to True. I set it to False using the following command:
Set-Mailbox "UserPrincipalName" -RemoveComplianceTagHoldApplied
After making this change, I was successfully able to purge the emails from the DiscoveryHolds folder.
You cannot purge items in DiscoveryHolds directly, best you can do is cleanup duplicates via:
Start-ManagedFolderAssistant user@domain.com -HoldCleanup
And you should check for org-wide holds. They will not appear under the InPlaceHolds property on the mailbox, and the fact that you have some exclusions therein does not mean that other org-wide holds are not in play. Moreover, the ComplianceTagHoldApplied property value confirms that you have at least one retention policy/label acting on the mailbox. So check via:
Get-OrganizationConfig | fl InPlaceHolds
and take the necessary actions. Refer to this article for more info: https://learn.microsoft.com/en-us/purview/ediscovery-identify-a-hold-on-an-exchange-online-mailbox