New-OutboundConnector

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

Use the New-OutboundConnector cmdlet to create a new Outbound connector in your cloud-based organization.

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

Syntax

New-OutboundConnector
   [-Name] <String>
   [-AllAcceptedDomains <Boolean>]
   [-CloudServicesMailEnabled <Boolean>]
   [-Comment <String>]
   [-Confirm]
   [-ConnectorSource <TenantConnectorSource>]
   [-ConnectorType <TenantConnectorType>]
   [-Enabled <Boolean>]
   [-IsTransportRuleScoped <Boolean>]
   [-LinkForModifiedConnector <Guid>]
   [-RecipientDomains <MultiValuedProperty>]
   [-RouteAllMessagesViaOnPremises <Boolean>]
   [-SenderRewritingEnabled <Boolean>]
   [-SmartHosts <MultiValuedProperty>]
   [-TestMode <Boolean>]
   [-TlsDomain <SmtpDomainWithSubdomains>]
   [-TlsSettings <TlsAuthLevel>]
   [-UseMXRecord <Boolean>]
   [-WhatIf]
   [<CommonParameters>]

Description

Outbound connectors send email messages to remote domains that require specific configuration options.

You need to be assigned permissions before you can run this cmdlet. Although this topic lists all parameters for the cmdlet, you may not have access to some parameters if they're not included in the permissions assigned to you. To find the permissions required to run any cmdlet or parameter in your organization, see Find the permissions required to run any Exchange cmdlet.

Examples

Example 1

New-OutboundConnector -Name "Contoso Outbound Connector" -RecipientDomains *.contoso.com -TlsSettings DomainValidation -TlsDomain *.contoso.com

This example creates the Outbound connector named Contoso Outbound Connector with the following properties:

  • It sends messages to recipients in the contoso.com domain and all subdomains.
  • It uses TLS encryption and certificate verification for mail routed to the contoso.com domain and all subdomains

Parameters

-AllAcceptedDomains

The AllAcceptedDomains parameter specifies whether the Outbound connector is used in hybrid organizations where message recipients are in accepted domains of the cloud-based organization. Valid values are:

  • $true: The Outbound connector is used in hybrid organizations when message recipients are in an accepted domain of the cloud-based organization. This setting requires OnPremises for the ConnectorType value.
  • $false: The Outbound connector isn't used in hybrid organizations. This is the default value.

This parameter is effective only for OnPremises connectors.

Type:Boolean
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-CloudServicesMailEnabled

Note: We recommend that you don't use this parameter unless you are directed to do so by Microsoft Customer Service and Support, or by specific product documentation. Instead, use the Hybrid Configuration wizard to configure mail flow between your on-premises and cloud organizations. For more information, see Hybrid Configuration wizard.

The CloudServicesMailEnabled parameter specifies whether the connector is used for hybrid mail flow between an on-premises Exchange environment and Microsoft 365. Specifically, this parameter controls how certain internal X-MS-Exchange-Organization-* message headers are handled in messages that are sent between accepted domains in the on-premises and cloud organizations. These headers are collectively known as cross-premises headers.

Valid values are:

  • $true: The connector is used for mail flow in hybrid organizations, so cross-premises headers are preserved or promoted in messages that flow through the connector. This is the default value for connectors that are created by the Hybrid Configuration wizard. Certain X-MS-Exchange-Organization-* headers in outbound messages that are sent from one side of the hybrid organization to the other are converted to X-MS-Exchange-CrossPremises-* headers and are thereby preserved in messages. X-MS-Exchange-CrossPremises-* headers in inbound messages that are received on one side of the hybrid organization from the other are promoted to X-MS-Exchange-Organization-* headers. These promoted headers replace any instances of the same X-MS-Exchange-Organization-* headers that already exist in messages.
  • $false: The connector isn't used for mail flow in hybrid organizations, so any cross-premises headers are removed from messages that flow through the connector.
Type:Boolean
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-Comment

The Comment parameter specifies an optional comment. If you specify a value that contains spaces, enclose the value in quotation marks ("), for example: "This is an admin note".

Type:String
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-Confirm

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.
Type:SwitchParameter
Aliases:cf
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-ConnectorSource

The ConnectorSource parameter specifies how the connector is created. Valid values are:

  • Default: The connector is manually created. This is the default value when you use this cmdlet, and we recommend that you don't change this value.
  • HybridWizard: The connector is automatically created by the Hybrid Configuration Wizard.
  • Migrated: The connector was originally created in Microsoft Forefront Online Protection for Exchange.
Type:TenantConnectorSource
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-ConnectorType

The ConnectorType parameter specifies a category for the domains that are serviced by the connector. Valid values are:

  • Partner: The connector services domains that are external to your organization.
  • OnPremises: The connector services domains that are used by your on-premises organization.
Type:TenantConnectorType
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-Enabled

The Enabled parameter specifies whether to enable or disable the Outbound connector. Valid values are:

  • $true: The connector is enabled. This is the default value.
  • $false: The connector is disabled.
Type:Boolean
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-IsTransportRuleScoped

The IsTransportRuleScoped parameter specifies whether the Outbound connector is associated with a transport rule (also known as a mail flow rule). Valid values are:

  • $true: The connector is associated with a transport rule.
  • $false: The connector isn't associated with a transport rule. This is the default value.

You scope a transport rule to an Outbound connector by using the RouteMessageOutboundConnector parameter on the New-TransportRule or Set-TransportRule cmdlets. Messages that match the conditions of the transport rule are routed to their destinations by using the specified Outbound connector.

Type:Boolean
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-LinkForModifiedConnector

This parameter is reserved for internal Microsoft use.

Type:Guid
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-Name

The Name parameter specifies the unique name for the connector. The maximum length is 64 characters. If the value contains spaces, enclose the value in quotation marks (").

Type:String
Position:1
Default value:None
Required:True
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-RecipientDomains

The RecipientDomains parameter specifies the domains that the Outbound connector routes mail to. You can specify multiple domains separated by commas.

You can use a wildcard character to specify all subdomains of a specified domain, as shown in the following example: *.contoso.com. However, you can't embed a wildcard character, as shown in the following example: domain.*.contoso.com.

Type:MultiValuedProperty
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-RouteAllMessagesViaOnPremises

The RouteAllMessagesViaOnPremises parameter specifies that all messages serviced by this connector are first routed through the on-premises email system in hybrid organizations. Valid values are:

  • $true: Messages are routed through the on-premises email system. This setting requires OnPremises for the ConnectorType value.
  • $false: Messages aren't routed through the on-premises email system. This is the default value.

This parameter is effective only for OnPremises connectors.

Type:Boolean
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-SenderRewritingEnabled

The SenderRewritingEnabled parameter specifies that all messages that normally qualify for SRS rewriting are rewritten for routing through the on-premises email system. Valid values are:

  • $true: Messages are rewritten by SRS as needed before being routed through the on-premises email system. This setting requires OnPremises for the ConnectorType value.
  • $false: Messages aren't rewritten by SRS before being routed through the on-premises email system. This is the default value.

This parameter is effective only for OnPremises connectors.

Type:Boolean
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-SmartHosts

The SmartHosts parameter specifies the smart host that the Outbound connector uses to route mail. Valid values are:

  • FQDN of a smart host server, a mail exchange (MX) record, or an address (A) record: For example, mail.contoso.com.
  • Single IP address: For example, 10.10.1.1.
  • Classless InterDomain Routing (CIDR) IP address range: For example, 192.168.0.1/25.

You can specify multiple value separated by commas: "Value1","Value2",..."ValueN".

This parameter is required if you use the value $false for the UseMxRecord parameter.

Type:MultiValuedProperty
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-TestMode

The TestMode parameter specifies whether you want to enabled or disable test mode for the Outbound connector. Valid values are:

  • $true: Test mode is enabled.
  • $false: Test mode is disabled. This is the default value.
Type:Boolean
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-TlsDomain

The TlsDomain parameter specifies the domain name that the Outbound connector uses to verify the FQDN of the target certificate when establishing a TLS secured connection. A valid value for this parameter is an SMTP domain.

Wildcards are supported to specify all subdomains of a domain (for example, *.contoso.com), but you can't embed the wildcard character within the domain (for example, domain.*.contoso.com).

This parameter meaningful only when the TlsSettings value is DomainValidation.

Type:SmtpDomainWithSubdomains
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-TlsSettings

The TlsSettings parameter specifies the TLS authentication level that's used for outbound TLS connections established by this Outbound connector. Valid values are:

  • EncryptionOnly: TLS is used only to encrypt the communication channel. No certificate authentication is performed.
  • CertificateValidation: TLS is used to encrypt the channel and certificate chain validation and revocation lists checks are performed.
  • DomainValidation: In addition to channel encryption and certificate validation, the Outbound connector also verifies that the FQDN of the target certificate matches the domain specified in the TlsDomain parameter.
  • $null (blank): This is the default value.
Type:TlsAuthLevel
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-UseMXRecord

The UseMXRecord parameter enables or disables DNS routing for the connector. Valid values are:

  • $true: The connector uses DNS routing (MX records in DNS) to deliver email. This is the default value.
  • $false: The connector delivers email to one or more smart hosts. This setting requires one or more smart hosts for the SmartHosts value.
Type:Boolean
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

-WhatIf

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.

Type:SwitchParameter
Aliases:wi
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Exchange Online, Exchange Online Protection

Inputs

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.

Outputs

Output 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.