In Exchange Server 2016, the Client Access server role has been removed and its functionality has been combined with the Mailbox server role. Although you can't refer to Client Access server anymore, its functionality is still there in Exchange Server 2016. Now, it's referred to as client access services.
Client access services provide the connectivity needed for clients such as Microsoft Outlook, web browsers, and mobile devices to access information in Exchange Server. These clients can access not only their mailboxes, but also additional services such as Autodiscover, free/busy searches, and offline address books. Without client access services, all you have is a mailbox that nobody can access.
If you are familiar with Exchange Server 2010, most of the services provided are similar, but they are architected differently to provide more flexibility for load balancing. How the services are provided in Exchange Server 2016 is virtually unchanged from Exchange Server 2013, with the exception of the new MAPI over HTTP protocol for Outlook clients.
This chapter introduces the client access services and shows you the steps you'll need to follow to get the most out of them.
IN THIS CHAPTER, YOU WILL LEARN TO: