222 Chapter 4 • Managing the Exchange 2007 Mailbox Server Role before the schedule runs? Don’t worry; you can use the Start-ManagedFolderAssistant CMDlet in the EMS to process all mailboxes immediately. But think twice before doing so, because the managed folder assistant can be a resource-intensive process for the mailbox server and the network in general. When the managed folder assistant has run, the managed folders will appear in the mail client (Outlook 2007 and Outlook 2007), as shown in Figure 4.54. Figure 4.54 Managed Folders in Outlook 2007 Here we see the Private e-mail folder we created earlier in this chapter. Notice the comment we specifi ed as well as the confi gured quota for this managed folder. Offl ine Address Books We have reached the last tab under the Mailbox subnode, which is the Offl ine Address Book tab (see Figure 4.55). As you might have guessed, this is where we can view a list of the offl ine address books in the Exchange organization. The OAB functionality has change radically in Exchange Server 2007, so before we dive into the confi guration settings for OABs, a little introduction to the new behavior of this type of address book is in order. Exchange Server 2007 introduces a completely new distribution mechanism for OABs, Figure 4.55 The Offl ine Address Book Tab a mechanism that isn’t based on Public Folders, as was the case with Exchange Server 2000 and 2003. OABs in Exchange Server 2007 use HTTP(S) and the Background Intelligent Transfer Service (BITS), which provides us with several benefi ts, such as support for more concurrent clients, even more reduced bandwidth usage, and fi nally, much better control over the distribution points. (We’ll bet that any of you have had your issues with OABs!) To use the new distribution mechanism, it’s required that the clients run Outlook 2007, but there’s still support for legacy clients (Outlook 2003 and earlier), since you can choose to have both a Public Folder and a Web-based distribution point. (In Exchange Server 2007, OABs are located on the Client Access Server in the site.) The OAB mechanism depends on the following components: ■ OABGen Service This is the service that is running on the OAB Generation server (Exchange 2007 Server with the Mailbox server role installed) in order for the OABs to be created. Managing the Exchange 2007 Mailbox Server Role • Chapter 4 223 224 Chapter 4 • Managing the Exchange 2007 Mailbox Server Role ■ Exchange File Distribution Service This runs on a CAS server and is the service responsible for getting the OAB content from the Exchange 2007 Mailbox server (OABGen server). ■ OAB Virtual Directory This is an IIS virtual directory on the Client Access Server (CAS). This is where the clients download the OABs from. ■ Autodiscover Service This service also runs on a CAS server and is the one that makes sure the correct OAB URL is returned to Outlook clients. When you install an Exchange Server 2007, one OAB is created by default. Let’s take a look at the settings confi gured for the default OAB. To do so, perform the following steps: 1. Select the OAB in the Work pane, then click the Properties link in the Action pane. Alternatively, right-click the OAB to bring up its context menu, and select Properties. As you can see in Figure 4.56, this OAB has been scheduled for updates at 5:00 a.m. each day. Figure 4.56 The General Tab on the Offl ine Address Book Properties Page Managing the Exchange 2007 Mailbox Server Role • Chapter 4 225 2. Click the Address Lists tab. As we can see in Figure 4.57, the default OAB includes the default GAL, which is all mail-enabled objects. Figure 4.57 The Address Lists Tab on the Offl ine Address Book Properties Page 3. Now click the Distribution tab. As you can see in Figure 4.58, this is the place where you specify the type of Outlook clients OAB should support. By default, only Outlook 2003 SP2 and later are supported. This is also the place where you enable the type of distribution point you want to provide to the clients. When you’re installing Exchange Server 2007 into an Active Directory forest that doesn’t contain an Exchange 2000 or 2003 organization and you select No when the Exchange Server 2007 Installation Wizard asks whether you’ve got any Outlook 2003 or earlier clients in your organization, only the Web-based distribution point will be enabled. If you answer Ye s to this question, the Installation Wizard will create and mount a Public Folder database on the Exchange 2007 server as well as enable the Public Folder distribution mechanism. 226 Chapter 4 • Managing the Exchange 2007 Mailbox Server Role 4. Click OK to exit the Properties for the Default OAB. Creating a New Offl ine Address Book Now that you have seen the default settings confi gured for the default OAB, let’s try to create a new OAB. We do this the following way: Figure 4.58 The Distribution Tab on the Offl ine Address Book Properties Page NOTE The default OAB should be suffi cient for most organizations, but using multiple OABs is common practice in environments where there’s a need to isolate users from each other based on country, organization, or the like. Multiple OABs are especially commonly used by Exchange hosting providers that host multiple customers (domains) in their Exchange environments. . process for the mailbox server and the network in general. When the managed folder assistant has run, the managed folders will appear in the mail client (Outlook 2007 and Outlook 2007), as shown. isn’t based on Public Folders, as was the case with Exchange Server 2000 and 2003. OABs in Exchange Server 2007 use HTTP(S) and the Background Intelligent Transfer Service (BITS), which provides. with several benefi ts, such as support for more concurrent clients, even more reduced bandwidth usage, and fi nally, much better control over the distribution points. (We’ll bet that any of you