Mailbox servers

In Microsoft Exchange Server 2010, the Mailbox server role hosted both mailbox and public folder databases and also provided email message storage. In Exchange Server 2016 and Exchange Server 2019, the Mailbox server role contains transport services for routing mail, mailbox databases, Client access services to accept client connections, and (in Exchange 2016 only) Unified Messaging (UM) components.

For more information about Exchange mailbox servers and how they complement other server roles, see Exchange architecture.

Managing Mailbox servers

The following articles contain procedures for common Mailbox server management tasks:

• Manage mailbox databases in Exchange Server

• Manage on-premises mailbox moves in Exchange Server

• Prepare mailboxes for cross-forest move requests

• Enable the MRS Proxy endpoint for remote moves