Home » Exchange Server 2010 » Mailflow » Configuring Cross-Forest Send Connector in Exchange 2013 Using EMS

Configuring Cross-Forest Send Connector in Exchange 2013 Using EMS

Configuring Cross-Forest Send Connector in Exchange 2013 Using EMS

Use the EAC to create a send connector to route email to another Exchange 2013 forest

Establish cross-forest mail flow using Basic authentication.

  1. In the EAC, navigate to mail flow > send connectors. Click Add .
  2. In the new send connector wizard, specify a name for the send connector and then select Internal for the Type. Click next.
  3. Choose Route mail through smart hosts, and then click Add . In the add smart host window, specify the IP address of the target server in the second forest, such as Click save and then next.
    For Smart host authentication, choose Basic authentication and provide a user name and password. Here you can choose Offer basic authentication only after starting TLS for secure communication over TLS.

Note: If you use Basic authentication over TLS, the target server must be configured to use an X.509 certificate.

  1. Under Address space, click Add . In the add domain window, make sure SMTP is listed as the Type. For Fully Qualified Domain Name (FQDN), enter the receiving domain, such as Click save and then next.
  2. For Source server, click Add. In the Select a server window, choose the server to use and click add . Click ok.
  3. Click finish. The connector appears in the list of Send connectors.

After you create your Send connector, create a Send connector in the second forest that sends mail to the original forest. In this case, the Fully Qualified Domain Name (FQDN) you specify will be the domain name of the first forest. For example,

Use the Shell to set permissions on the Send connector

This example uses the Enable-CrossForestConnector.ps1 script in the Shell to set permissions on the Send connector for use in a cross-forest topology.

 .\Enable-CrossForestConnector.ps1 -Connector “Cross-Forest” -user “ANONYMOUS LOGON”

How do you know this worked?

To verify that you have successfully created Send connectors to route email to a second forest, send a message from a user in your organization (you can use the Outlook Web App) to the domain you specified for the Address space. If the recipient receives the message, you’ve successfully configured the send connector.


Praveen Kumar

MCTS | Exchange Server

Publisher of

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: