Transitioning from Exchange 2000 or 2003 to Exchange 2007 • Chapter 10 647 Figure 10.21 Permission Groups Settings on the Default Receive Connector In addition, you should make sure that any Send connector on the Organization Confi guration | Hub Transport | Send Connector tab is confi gured properly so that it can send outbound mail (using either a smart host or DNS MX), as shown in Figure 10.22. 648 Chapter 10 • Transitioning from Exchange 2000 or 2003 to Exchange 2007 When the necessary changes have been made, we can delete the routing group connector that was set up to establish mail fl ow between the Exchange 2003 and 2007 routing groups. To do so: 1. Expand Administrative Groups | First Administrative Group | Routing Groups | Connectors and right-click the respective Routing Group Connector, then select Delete in the context menu, as shown in Figure 10.23. Figure 10.22 Permission Groups Settings on the Default Receive Connector Transitioning from Exchange 2000 or 2003 to Exchange 2007 • Chapter 10 649 2. Since the routing group connector won’t be deleted at both ends, you also need to delete it under the Exchange Administrative Group (FYDIBOHF23SPDLT) | Exchange Routing Group (DWBGZMFD01QNBJR) | Connectors. Decommissioning the Legacy Exchange Server The fi nal step is to decommission the Exchange 2000 or 2003 server and we can consider the transition done. The Exchange 2003 server should be removed using the Exchange 2003 Setup program, which can be launched via Add or Remove Programs (see Figure 10.24). Figure 10.23 Deleting the Routing Groups Connector 650 Chapter 10 • Transitioning from Exchange 2000 or 2003 to Exchange 2007 Before we begin uninstalling the Exchange 2003 server, we fi rst need to assign the Recipient Update Service (RUS) to our Exchange 2007 server. We do this not because RUS should be used (in fact, Exchange 2007 no longer uses RUS) but because the Exchange 2003 Setup program won’t let us uninstall Exchange 2003 before RUS has been assigned to another server. To assign RUS to the Exchange 2007 Server: 1. Open the Exchange 2003 System Manager, then expand the Recipients node and select Recipient Update Services. Now open the Properties pages for both Recipient Update Service (Enterprise Confi guration) and Recipient Update Service (domain), then click the Browse button under the Exchange Server text box and specify the Exchange 2007 Server instead. Click OK twice and close the System Manager, as shown in Figure 10.25. Figure 10.24 Add or Remove Programs Transitioning from Exchange 2000 or 2003 to Exchange 2007 • Chapter 10 651 2. Now we can continue uninstalling the server, so select Microsoft Exchange, then click the Change/Remove button. 3. The Exchange 2000 or 2003 Wizard will appear. Click Next, then select Remove in the Action drop-down box, as shown in Figure 10.26. Click Next. Figure 10.25 Assigning the Recipient Update Service to the Exchange 2007 Server . Confi guration) and Recipient Update Service (domain), then click the Browse button under the Exchange Server text box and specify the Exchange 2007 Server instead. Click OK twice and close the. (FYDIBOHF23SPDLT) | Exchange Routing Group (DWBGZMFD01QNBJR) | Connectors. Decommissioning the Legacy Exchange Server The fi nal step is to decommission the Exchange 2000 or 2003 server and we can consider. Transitioning from Exchange 2000 or 2003 to Exchange 2007 Before we begin uninstalling the Exchange 2003 server, we fi rst need to assign the Recipient Update Service (RUS) to our Exchange 2007 server.