Convert User Mailbox to Shared Mailbox using Powershell

You want to convert User Mailbox to Shared Mailbox using Powershell in Exchange Server. You can achieve this in any version released after Exchange 2010.

NOTE: Microsoft removed the option to convert User Mailbox to Shared Mailbox in the Exchange On-Premise Admin Center. This task can be easily achieved in PowerShell.

  • Run the exchange management shell using administrator rights. Run the set-mailbox cmdlet, and specify the user mailbox. You can use either the username or email address associated to the mailbox. You will not get any output showing that it has succedded upon executing the cmdlet.
Set-Mailbox "John Doe" -Type Shared

Set-Mailbox "[email protected]" -Type Shared
  • Upon completion, you can run the Get-Mailbox cmdlet and it will show the output. It will show as SharedMailbox as indicated below:
Get-Mailbox -Identity "John Doe" | Format-Table Name, RecipientTypeDetails

Get-Mailbox -Identity "[email protected]" | Format-Table Name, RecipientTypeDetails

Now that we have verified the mailbox and all is good, we can go ahead and mark this as closed. That shall be all. Don’t forget to follow and share this article.

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