Once the Zimbra Collaboration Suite is installed, you can log on to the administration console and configure additional domains, create Classes of Service, and provision accounts. See the Zimbra Administrator’s Guide.
A default Class of Service (COS) is automatically created during the installation of Zimbra software. The COS controls mailbox quotas, message lifetime, password restrictions, attachment blocking and server pools. You can modify the default COS and create new COSs to assign to accounts according to your group management policies.
In an environment with multiple mailbox servers, COS is used to assign the new accounts to a mailbox server. The COS server pool tab lists the mailbox servers in your Zimbra environment. When you configure the COS, select which servers to add to the server pool. Within each pool of servers, a random algorithm assigns new mailboxes to any available server.
You can provision up to 500 accounts on once using the Bulk Account Wizard from the administration console. The wizard takes you through the steps to upload a .csv file with the account information and then provisions the user accounts. These accounts are configured with a user name, display name and password (optional). The accounts are automatically assigned the domain default COS.
Zimbra’s migration and import tools can be used to move users’ email messages, calendars, and contacts from their old email servers to their accounts on the Zimbra server. When the user’s files are imported, the folder hierarchy is maintained. These tools can be accessed from the administration console Download page and instruction guides are available from the Administration Console Help Desk.