ZCS Administrator Guide 8.0

Network Edition

Zimbra Mailbox Server

The Zimbra mailbox server is a dedicated server that manages all the mailbox content, including messages, contacts, calendar, and attachments. In a ZCS single-server environment, all services are on one server. In a ZCS multi-server environment, the LDAP and MTA services can be installed on separate servers.

The Zimbra mailbox server receives the messages from the Zimbra MTA server and passes them through any filters that have been created. Messages are then indexed and deposited into the correct mailbox.

The Zimbra mailbox server has dedicated volumes for backup and log files. Each Zimbra mailbox server can see only its own storage volumes. Zimbra mailbox servers cannot see, read, or write to another server.