Managing the Edge Transport Server • Chapter 7 397 Figure 7.17 Creating a New Edge Subscription SOME INDEPENDENT ADVICE If you instead wanted to import the Edge Subscription fi le using Exchange Management Shell (EMS), you could do so using the New-EdgeSubscription –FileName: “C:\EdgeSubscriptionFile.xml” –Site: “Default-First-Site-Name” CMDlet, as shown in Figure 7.17. When the Edge Subscription fi le has been imported, it’s a good security practice to delete the XML fi le. 398 Chapter 7 • Managing the Edge Transport Server Figure 7.18 Manually Starting the Edge Synchronization NOTE When the EdgeSync service synchronizes data from Active Directory to the ADAM store on the edge transport server, it is sent hashed to protect the synchronized data. In addition, the LDAP connection is secured by the ADAM credentials, which are stored in the Edge Subscription fi le. Forcing a synchronization using Start-EdgeSynchronization is also a very good idea if you have made bulk changes in Active Directory (perhaps added 50 new mail-enabled or mailbox-enabled users) so that these changes are replicated immediately. Now that you have created an edge subscription, the EdgeSync service on the Hub transport server will synchronize confi guration data such as each hour and recipient data every fourth hour to the Edge Transport server. If you don’t want to wait for four hours before the replication occurs, you can force the EdgeSync synchronization manually. To do so, open the EMS on a Hub Transport server and type Start-EdgeSynchronization, as shown in Figure 7.18. Managing the Edge Transport Server • Chapter 7 399 Verifying That the EdgeSync Service Works As Expected To see whether the Hub Transport server confi guration data has propagated properly to the Edge Transport server, you should verify that a send connector has been created on the server. You do so by performing the following steps: 1. Log onto the Edge Transport server. 2. Open the EMC. 3. Click the Edge Transport node in the navigation tree in the left pane. 4. Now click the Send Connectors tab in the Work pane (see Figure 7.19). Figure 7.19 The Send Connector on the Edge Transport Server 5. Verify that a Send connector has been created. Also make sure that each domain listed under the Accepted Domains tab on the Hub Transport server is listed when you type Get-AcceptedDomain in the EMS on the Edge Transport server. You should get a list similar to the one shown in Figure 7.20. 400 Chapter 7 • Managing the Edge Transport Server If everything is as expected, you now have a working Edge Transport server in your parameter network (your DMZ or screened subnet). Congratulations! Creating a Postmaster Mailbox No matter whether you plan to deploy an edge transport server in your organization or you simply will confi gure the hub transport server as the Internet-facing server, it’s recommended that you create a postmaster mailbox. Since by now you most likely have installed a hub transport server in your organization, chances are you already have created a postmaster mailbox. But if you haven’t, you need to perform the following steps: 1. On the edge transport or the hub transport server in your organization, open the EMS and type Get-TransportServer, as shown in Figure 7.21. This CMDlet will tell us the name of the transport server, whether message tracking has been enabled, and the external SMTP address used for the postmaster. Figure 7.20 Listing the Accepted Domain Figure 7.21 Retrieving the Postmaster Address 2. If no postmaster address is specifi ed, you can do so by typing Set-TransportServer –ExternalPostmasterAddress postmaster@exchangehosting.dk (replace the domain name with the SMTP domain used in your organization) and pressing Enter. Managing the Edge Transport Server • Chapter 7 401 To associate the confi gured external postmaster SMTP address with a specifi c mailbox, perform the following steps: 1. On an Exchange 2007 server in your organization, open the EMC, expand the Recipient Confi guration work center node, and select the Mailbox subnode. 2. Now choose Properties for the mailbox you want to associate with the postmaster SMTP address and click the E-mail addresses tab. 3. Click Add; type postmaster@exchangehosting.dk (replacing the domain name with the SMTP domain used in your organization), as shown in Figure 7.22; and click OK twice. Figure 7.22 The E-mail Addresses Tab . EMC, expand the Recipient Confi guration work center node, and select the Mailbox subnode. 2. Now choose Properties for the mailbox you want to associate with the postmaster SMTP address and click. organization, open the EMS and type Get-TransportServer, as shown in Figure 7.21. This CMDlet will tell us the name of the transport server, whether message tracking has been enabled, and the external. EdgeSync service on the Hub transport server will synchronize confi guration data such as each hour and recipient data every fourth hour to the Edge Transport server. If you don’t want to wait for