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Applies to: Exchange Server 2016

This cmdlet is available only in on-premises Exchange Server 2016.

Use the Update-EmailAddressPolicy cmdlet to apply an email address policy to all recipients.

For information about the parameter sets in the Syntax section below, see Syntax.

Update-EmailAddressPolicy -Identity <EmailAddressPolicyIdParameter> [-Confirm [<SwitchParameter>]] [-DomainController <Fqdn>] [-FixMissingAlias <SwitchParameter>] [-UpdateSecondaryAddressesOnly <SwitchParameter>] [-WhatIf [<SwitchParameter>]]

This example applies the email address policy EMAIL_ADDRESS_POLICY01 to all affected recipients.

Update-EmailAddressPolicy -Identity EMAIL_ADDRESS_POLICY01

The Update-EmailAddressPolicy cmdlet queries for all recipients that match the specified email address policy and saves the objects to Active Directory. Use the Update-EmailAddressPolicy cmdlet after you use the Set-EmailAddressPolicy cmdlet to apply all changes. For more information about the Set-EmailAddressPolicy cmdlet, see Set-EmailAddressPolicy.

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 "Email address policies" entry in the Email address and address book permissions topic.


Parameter Required Type Description




The Identity parameter specifies the GUID, distinguished name (DN), or email address policy name that represents a specific email address policy. You can also include the path by using the format Path\EmailAddressPolicy.

You can omit the parameter label Identity so that only the email address policy name or GUID is supplied.




The Confirm switch specifies whether to show or hide the confirmation prompt. How this switch affects the cmdlet depends on if the cmdlet requires confirmation before proceeding.

  • Destructive cmdlets (for example, Remove-* cmdlets) have a built-in pause that forces you to acknowledge the command before proceeding. For these cmdlets, you can skip the confirmation prompt by using this exact syntax: -Confirm:$false.

  • Most other cmdlets (for example, New-* and Set-* cmdlets) don't have a built-in pause. For these cmdlets, specifying the Confirm switch without a value introduces a pause that forces you acknowledge the command before proceeding.




The DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory. You identify the domain controller by its fully qualified domain name (FQDN). For example,




The FixMissingAlias switch repairs recipients that don't have an alias. The alias is generated based on the name of the recipient. You need to use the FixMissingAlias parameter if you receive an error message when you attempt to update an email address policy, global address list, or address list.




The UpdateSecondaryAddressesOnly switch parameter specifies to update the secondary email addresses only. If you specify this parameter, the primary proxy email address isn't updated.




The WhatIf switch simulates the actions of the command. You can use this switch to view the changes that would occur without actually applying those changes. You don't need to specify a value with this 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.

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