Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2

Topic Last Modified: 2012-11-19

Use the Disable-UMMailbox cmdlet to disable Unified Messaging (UM) for a UM-enabled recipient.


Disable-UMMailbox -Identity <MailboxIdParameter> [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-IgnoreDefaultScope <SwitchParameter>] [-KeepProperties <$true | $false>] [-WhatIf [<SwitchParameter>]]

Detailed Description

The Disable-UMMailbox cmdlet disables Unified Messaging for a Microsoft Exchange Server 2010 recipient who's currently UM-enabled. After the task finishes running, Unified Messaging servers no longer handle calls for the extension number associated with the mailbox. You can continue to use the Exchange mailbox for all other operations unrelated to Unified Messaging.

After this task is completed, the user is disabled for Unified Messaging and can't use the voice mail features found in Unified Messaging any longer.

You need to be assigned permissions before you can run this cmdlet. Although all parameters for this cmdlet are listed in this topic, you may not have access to some parameters if they're not included in the permissions assigned to you. To see what permissions you need, see the "UM mailbox" entry in the Unified Messaging Permissions topic.


Parameter Required Type Description




The Identity parameter specifies the user to disable for Unified Messaging. The variables for this parameter include the following:

  • ADObjectID

  • GUID

  • DN

  • Domain\Account

  • UPN

  • LegacyExchangeDN

  • SmtpAddress

  • Alias




The Confirm switch causes the command to pause processing and requires you to acknowledge what the command will do before processing continues. You don't have to specify a value with the Confirm switch.




The DomainController parameter specifies the fully qualified domain name (FQDN) of the domain controller that writes this configuration change to Active Directory.




The IgnoreDefaultScope parameter instructs the command to ignore the default recipient scope setting for the Exchange Management Shell session and use the entire forest as the scope. This allows the command to access Active Directory objects that aren't currently in the default scope. Using the IgnoreDefaultScope parameter introduces the following restrictions:

  • You can't use the DomainController parameter. The command uses an appropriate global catalog server automatically.

  • You can only use the distinguished name for the Identity parameter. Other forms of identification, such as alias or GUID, aren't accepted.




The KeepProperties parameter specifies whether the mailbox and directory resident properties should be retained. If this parameter isn't included, the user's UM properties are retained.




The WhatIf switch instructs the command to simulate the actions that it would take on the object. By using the WhatIf switch, you can view what changes would occur without having to apply any of those changes. You don't have to specify a value with the WhatIf switch.

Input Types

To see the input types that this cmdlet accepts, see Cmdlet Input and Output Types. If the Input Type field for a cmdlet is blank, the cmdlet doesn’t accept input data.

Return Types

To see the return types, which are also known as output types, that this cmdlet accepts, see Cmdlet Input and Output Types. If the Output Type field is blank, the cmdlet doesn’t return data.



This example disables Unified Messaging on the mailbox for

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Disable-UMMailbox -Identity