Set-AcceptedDomain

This parameter is available only in on-premises Exchange.

The AddressBookEnabled parameter specifies whether to enable recipient filtering for this accepted domain. The default values are:

• $true for authoritative domains.
• $false for internal relay domains.
• $false for external relay domains.

This parameter is available only in the cloud-based service.

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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.

This parameter is available only in on-premises Exchange.

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, dc01.contoso.com.

The DomainController parameter isn't supported on Edge Transport servers. An Edge Transport server uses the local instance of Active Directory Lightweight Directory Services (AD LDS) to read and write data.

The DomainType parameter specifies the accepted domain type. Valid values are:

• Authoritative: This is the default value. Your organization is completely responsible for delivering email to recipients in the domain, and for generating non-delivery reports (also known as an NDRs, delivery system notifications, DSNs, or bounce messages) for unresolved recipients.
• InternalRelay: This is a type of non-authoritative domain. Your organization receives email that's sent to recipients in the domain, but the messages are relayed to an external email system that's under your control. The external email system is responsible for generating NDRs for unresolved recipients. Use this value to treat messages that are sent to the domain as internal messages.
• ExternalRelay: This is a type of non-authoritative domain that's available only in on-premises Exchange organizations. Your organization receives email that's sent to recipients in the domain, but the messages are relayed to an external email system that's completely outside of your control. The external email system is responsible for generating NDRs for unresolved recipients.

Note: For the value InternalRelay or ExternalRelay, you typically use mail users or mail contacts to relay the messages to the external email system. Address rewriting is also available on Edge Transport servers in on-premises Exchange organizations.

This parameter is available only in the cloud-based service.

This parameter is reserved for internal Microsoft use.

The Identity parameter specifies the accepted domain you want to modify. You can use any value that uniquely identifies the accepted domain object. For example, you can use the name, GUID or distinguished name (DN) of the accepted domain.

This parameter is available only in on-premises Exchange.

The MakeDefault parameter specifies whether the accepted domain is the default domain. Valid values are: $true or $false.

• $true: The accepted domain is the default domain. This is the default value for first accepted domain that's created in the organization.
• $false: The accepted domain isn't the default domain. This the default value for subsequent accepted domains.

The default accepted domain is used in sender email addresses when the senders have only non-SMTP email addresses (for example, X.400 addresses). Non-SMTP email addresses are encapsulated in SMTP email addresses by using the Internet Mail Connector Encapsulated Address (IMCEA) encapsulation method. IMCEA encapsulation uses the default domain value in the SMTP email address.

If you don't use non-SMTP email addresses in your organization, you don't need to worry about the value of this parameter.

The MatchSubDomains parameter enables mail to be sent by and received from users on any subdomain of this accepted domain. The default value is $false.

This parameter is available only in on-premises Exchange.

The Name parameter specifies a unique name for the accepted domain object. The default value is the DomainName property value. The maximum length is 64 characters. If the value contains spaces, enclose the value in quotation marks (").

This parameter is available only in the cloud-based service.

The OutboundOnly parameter specifies whether this accepted domain is an internal relay domain for the on-premises deployment for organizations that have coexistence with a cloud-based organization.

The authoritative accepted domain for the on-premises deployment is configured as an internal relay accepted domain on the cloud side. If the on-premises deployment is using Exchange Online Protection, you need to set this parameter to $true for the accepted domain that represents your on-premises deployment. This parameter is used only if the DomainType parameter is set to Authoritative or InternalRelay. The default value is $false.

This parameter is available only in on-premises Exchange.

This parameter is reserved for internal Microsoft use.

This parameter is available only in on-premises Exchange.

This parameter is reserved for internal Microsoft use.

This parameter is available only in the cloud-based service.

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This parameter is available only in the cloud-based service.

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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.