Mailbox and Client Access servers

Applies to: Exchange Server 2013

In Microsoft Exchange Server 2013, the five server roles from Exchange 2010 have been replaced by two main types of servers: Mailbox servers and Client Access servers. The Client Access server is a thin, stateless server that serves as a proxy for client connections to the Mailbox server. The Mailbox server handles the processing for all client connections to the active mailbox database.

Mailbox and Client Access server documentation

The following table contains links to topics that will help you learn about and manage Mailbox and Client Access servers in Exchange 2013.

Topic	Description
Mailbox server	Learn about the Mailbox server, which is responsible for client processing and houses an active or passive copy of the mailbox database.
Manage mailbox databases in Exchange 2013	Learn about the management tasks you can perform on a mailbox database after you create at least one database on a Mailbox server.
Client Access server	Learn about the Client Access server, which provides proxying and limited redirection for incoming client connections to the Mailbox server.
Mailbox import and export requests	Learn about importing and exporting information into mailboxes in your Exchange organization.