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FilipiBonnie-3315 asked EricYin-MSFT commented

Need to delete a quarantined Mailbox

Hello,

At a new customer site, we had to build a new Exchange server and then migrate mailboxes from DB backups. One user has a quarantined mailbox that has failed repair multiple times. I tried to delete it. I tried to permanently delete it. When I run Remove-StoreMailbox -Database XXX -Identitiy "GUID" -mailboxstate Disabled or SoftDelete, it fails because it says the mailbox is quarantined MAPIExceptionMailboxQuarantined. Cannot communicate with DS.

I have tried disabling the quarantine, but it tells me the mailbox does not exist.

Thanks,
Bonnie

office-exchange-server-administration
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Hi,
What if you run the command like this:

 Get-MailboxDatabase db1 | Get-mailbox user1|Disable-MailboxQuarantine

Check the status of this mailbox:

 Get-Mailbox –Server <Server-Name> –ResultSize unlimited | Get-MailboxStatistics | Where-Object { $_.IsQuarantined –eq $True } | Select DisplayName,IsQuarantined,QuarantineEnd

And there migth be corrution in your db, an easy method is to move all healthy mailbox to another DB.


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I am writing here to confirm with you how the thing going now?
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FilipiBonnie-3315 answered EricYin-MSFT commented

I ended up opening a ticket with Microsoft. One user mailbox that kept failing the move request and getting quarantined, simply worked after a server reboot. The other one (zombie mailbox), the Microsoft tech had to change the sam ID and one other id of an existing user so that the mailbox could be recreated with the old email address. It was an odd scenario. Thanks!

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Thanks for sharing, please accept it as answer to help those with same issue.

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