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Microsoft have documented the process here:<br />
<a href="https://technet.microsoft.com/en-us/library/jj863438(v=exchg.160).aspx" rel="ugc">https://technet.microsoft.com/en-us/library/jj863438(v=exchg.160).aspx</a>
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Microsoft have documented the process here:
https://technet.microsoft.com/en-us/library/jj863438(v=exchg.160).aspx [https://technet.microsoft.com/en-us/library/jj863438(v=exchg.160).aspx]

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If not visible in EAC please run this command.<br />

<pre><code id="code-20-42594422-1">Update-StoreMailboxState -Database “Exchange Database Name” -Identity “Mailbox Guid”</code></pre>
If you dont know your mailbox guid. You can update the state of all mailboxes using the below command.<br />

<pre><code id="code-20-42594422-2">Get-MailboxStatistics -Database “db_name” | ForEach {Update-StoreMailboxState -Database $_.Database -Identity $_.MailboxGuid -Confirm:$False}</code></pre>
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If not visible in EAC please run this command.


Update-StoreMailboxState -Database “Exchange Database Name” -Identity “Mailbox Guid”

If you dont know your mailbox guid. You can update the state of all mailboxes using the below command.


Get-MailboxStatistics -Database “db_name” | ForEach {Update-StoreMailboxState -Database $_.Database -Identity $_.MailboxGuid -Confirm:$False}

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How to restore back the delete shared Mallbox by powershell.
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How to restore back the delete shared Mallbox by powershell.

Restore mailbox

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Outlook

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