To perform the following procedures, the account you use must be delegated the following:

• Exchange Organization Administrator role
  

To perform the following procedures on a computer that has the Edge Transport server role installed, you must log on by using an account that is a member of the local Administrators group on that computer.

For more information about permissions, delegating roles, and the rights that are required to administer Exchange Server 2007, see Permission Considerations.

This section describes a typical linked connector scenario on an Edge Transport server. The following table describes the Send connectors and Receive connectors in that scenario.

Send connectors and Receive connectors in a typical linked connector scenario on an Edge Transport server

In this scenario, all messages that are destined for the Exchange 2007 organization arrive at the Edge Transport server through ReceiveConnectorA. Because ReceiveConnectorA is linked to SendConnectorC, the messages are immediately redirected to the third-party anti-spam and antivirus service through SendConnectorC. After the third-party anti-spam and antivirus service has finished processing the messages, the messages are delivered back to the Edge Transport server through ReceiveConnectorB.

ReceiveConnectorB is an unlinked Receive connector. This connector is very important in this scenario. Without ReceiveConnectorB, the messages would return to the Edge Transport server through ReceiveConnectorA and would then be forwarded back to the third-party anti-spam and antivirus service. This process would continue indefinitely. However, because ReceiveConnectorB is not linked to a Send connector, the Edge Transport server is free to select the route into the Exchange organization. This would occur through SendConnectorD. The messages are then delivered to the original recipients in the Exchange organization through SendConnectorD.

Run the following command to link a Receive connector to a new Send connector.

 To use the Exchange Management Shell to link a Receive connector to a new Send connector

• Use the following command:

  New-SendConnector -Name <ConnectorName> -LinkedReceiveConnector <ReceiveConnectorID> -SmartHosts <SmarthostID> -SmartHostAuthMechanism <AuthMechanism> -DNSRoutingEnabled $False -MaxMessageSize unlimited

  In the following example, the command links a Receive connector to a new Send connector. The properties of the Send connector and Receive connector are described in the following list:

  • Send connector name: "To Hygiene Service"
    
  • Linked Receive connector identity: "Edge01\From Internet"
    
  • Smart host identity: hygiene.contoso.com
    
  • Smart host authentication mechanism: ExternalAuthoritative
    
  New-SendConnector -Name "To Hygiene Service" -LinkedReceiveConnector "Edge01\From Internet" -SmartHosts hygiene.contoso.com -SmartHostAuthMechanism ExternalAuthoritative -DNSRoutingEnabled $False -MaxMessageSize unlimited

For detailed syntax and parameter information, see New-SendConnector.

Run the following command to link a Receive connector to an existing Send connector.

 To use the Exchange Management Shell to link a Receive connector to an existing Send connector

• Use the following command:

  Set-SendConnector <ConnectorID> -LinkedReceiveConnector <ReceiveConnectorID> -SmartHosts <SmarthostID> -SmartHostAuthMechanism <AuthMechanism> AddressSpaces $Null -DNSRoutingEnabled $False -MaxMessageSize unlimited

  In the following example, the command links a Receive connector to an existing Send connector. The Send connector and Receive connector properties are described in the following list:

  • Send connector identity: "To Hygiene Service"
    
  • Linked Receive connector identity: "Edge01\From Internet"
    
  • Smart host identity: hygiene.contoso.com
    
  • Smart host authentication mechanism: ExternalAuthoritative
    
  Set-SendConnector "To Hygiene Service" -LinkedReceiveConnector "Edge01\From Internet" -SmartHosts hygiene.contoso.com -SmartHostAuthMechanism ExternalAuthoritative AddressSpaces $Null -DNSRoutingEnabled $False -MaxMessageSize unlimited

For detailed syntax and parameter information, see Set-SendConnector.

After you have linked a Receive connector to a Send connector, you may want to break the link at some time. The following list describes the options for breaking the link:

• Remove the Send connector to which the Receive connector is linked   You can remove the Send connector by using the Exchange Management Console or by using the Remove-SendConnector cmdlet in the Exchange Management Shell. After you remove the Send connector, you don't have to modify the configuration of the Receive connector.
  
• Remove the Receive connector that is linked to the Send connector   You can remove the Receive connector by using the Exchange Management Console, or by using the Remove-ReceiveConnector cmdlet in the Exchange Management Shell. After you remove the Receive connector, you must modify the configuration of the Send connector. After the linked Receive connector is removed, the Send connector will have no address spaces configured. If you try to view or modify the Send connector, you will receive an error message that states that the Send connector is corrupted. To configure an address space for the Send connector, you can use the Exchange Management Console or the Set-SendConnector cmdlet in the Exchange Management Shell.
  

For detailed syntax and parameter information, see the following topics:

• Remove-SendConnector
  
• Remove-ReceiveConnector
  

For more information, see the following topics:

• Receive Connectors
  
• Send Connectors
  
• How to Modify the Configuration of a Send Connector
  
• How to Modify the Configuration of a Receive Connector
  
• Connector Cmdlets