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Exchange 2010

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

Topic Last Modified: 2015-03-09

Use the Disable-MailUser cmdlet to mail-disable an existing user in Active Directory by removing the attributes used by Exchange.

Disable-MailUser -Identity <MailUserIdParameter> [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-IgnoreDefaultScope <SwitchParameter>] [-IgnoreLegalHold <SwitchParameter>] [-WhatIf [<SwitchParameter>]]
Disable-MailUser -Identity <MailUserIdParameter> [-Archive <SwitchParameter>] [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-IgnoreDefaultScope <SwitchParameter>] [-IgnoreLegalHold <SwitchParameter>] [-WhatIf [<SwitchParameter>]]

The Disable-MailUser cmdlet mail-disables an existing user by removing the Active Directory Exchange Server attributes of the user. The user isn't deleted from Active Directory.

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 "Recipient Provisioning Permissions" section in the Mailbox Permissions topic.


Parameter Required Type Description




The Identity parameter specifies the identity of the mail user object.

This parameter accepts the following values:

  • Alias

    Example: JPhillips

  • Canonical DN

    Example: Atlanta.Corp.Contoso.Com/Users/JPhillips

  • Display Name

    Example: Jeff Phillips

  • Distinguished Name (DN)

    Example: CN=JPhillips,CN=Users,DC=Atlanta,DC=Corp,DC=contoso,DC=com

  • Domain\Account

    Example: Atlanta\JPhillips

  • GUID

    Example: fb456636-fe7d-4d58-9d15-5af57d0354c2

  • Immutable ID

    Example: fb456636-fe7d-4d58-9d15-5af57d0354c2@contoso.com

  • Legacy Exchange DN

    Example: /o=Contoso/ou=AdministrativeGroup/cn=Recipients/cn=JPhillips

  • SMTP Address

    Example: Jeff.Phillips@contoso.com

  • User Principal Name

    Example: JPhillips@contoso.com




This parameter is reserved for internal Microsoft use.




The Confirm switch can be used to suppress the confirmation prompt that appears by default when this cmdlet is run. To suppress the confirmation prompt, use the syntax -Confirm:$False. You must include a colon ( : ) in the syntax.




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 DN for the Identity parameter. Other forms of identification, such as alias or GUID, aren't accepted.




The IgnoreLegalHold switch ignores the legal hold status of the mail user and allows you to disable the cloud mailbox that’s on legal hold.

When you disable a mailbox, the mailbox is disconnected from the user account. After you disable a mailbox, you can’t include it in a discovery search. Disconnected mailboxes are permanently deleted from the mailbox database after the deleted mailbox retention period expires. To learn more, see Understanding Disconnected Mailboxes. Check with your organization’s legal or Human Resources department before disabling a mailbox that’s on legal hold.




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.

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.

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 mail-disables an existing user.

Disable-MailUser markus@contoso.com
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