Set-OutboundConnector
This cmdlet is available only in the cloud-based service.
Use the Set-OutboundConnector cmdlet to modify an existing Outbound connector in your cloud-based organization.
For information about the parameter sets in the Syntax section below, see Exchange cmdlet syntax.
Syntax
Set-OutboundConnector
[-Identity] <OutboundConnectorIdParameter>
[-AllAcceptedDomains <Boolean>]
[-CloudServicesMailEnabled <Boolean>]
[-Comment <String>]
[-Confirm]
[-ConnectorSource <TenantConnectorSource>]
[-ConnectorType <TenantConnectorType>]
[-Enabled <Boolean>]
[-IsTransportRuleScoped <Boolean>]
[-IsValidated <Boolean>]
[-LastValidationTimestamp <DateTime>]
[-Name <String>]
[-RecipientDomains <MultiValuedProperty>]
[-RouteAllMessagesViaOnPremises <Boolean>]
[-SenderRewritingEnabled <Boolean>]
[-SmartHosts <MultiValuedProperty>]
[-TestMode <Boolean>]
[-TlsDomain <SmtpDomainWithSubdomains>]
[-TlsSettings <TlsAuthLevel>]
[-UseMXRecord <Boolean>]
[-ValidationRecipients <String[]>]
[-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
Set-OutboundConnector "Contoso Outbound Connector" -UseMxRecord $false -SmartHosts 192.168.0.1This example changes the settings of the existing Outbound connector named Contoso Outbound Connector to route to a smart host at IP address 192.168.0.1.
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 for manually created connectors, 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 |
-Identity
The Identity parameter specifies the connector you want to modify. You can use any value that uniquely identifies the connector. For example:
- Name
- Distinguished name (DN)
- GUID
| Type: | OutboundConnectorIdParameter |
| Position: | 1 |
| Default value: | None |
| Required: | True |
| Accept pipeline input: | True |
| 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 |
-IsValidated
The IsValidated parameter specifies whether the Outbound connector has been validated. Valid values are:
- $true: The connector has been validated,
- $false: The connector hasn't been validated. This is the default value.
Use the Validate-OutboundConnector cmdlet to validate 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 |
-LastValidationTimestamp
The LastValidationTimestamp parameter specifies the date/time that the Outbound connector was validated.
To specify a date/time value for this parameter, use either of the following options:
- Specify the date/time value in UTC: For example, "2021-05-06 14:30:00z".
- Specify the date/time value as a formula that converts the date/time in your local time zone to UTC: For example,
(Get-Date "5/6/2021 9:30 AM").ToUniversalTime(). For more information, see Get-Date.
Use the Validate-OutboundConnector cmdlet to validate the connector.
| Type: | DateTime |
| 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: | Named |
| Default value: | None |
| Required: | False |
| Accept pipeline input: | False |
| Accept wildcard characters: | False |
| Applies to: | Exchange Online, Exchange Online Protection |
-RecipientDomains
The RecipientDomains parameter specifies the domain 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. 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 |
-ValidationRecipients
The ValidationRecipients parameter specifies the email addresses of the validation recipients for the Outbound connector. You can specify multiple email addresses separated by commas.
| Type: | String[] |
| 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.