ZCS Administrator Guide 8.0

Open Source Edition

Class of Services for Accounts

The Class of Service (COS) assigned to an account determines which default attributes users’ accounts have and which features are enabled or denied. Each account is assigned a COS. The COS controls mailbox quotas, message lifetime, password restrictions, attachment blocking, and server pool usage.

A COS is a global object and is not restricted to a particular domain or set of domains.

You can create and edit the classes of services from the administration console, Configure > Class of Service pages, and to edit an account’s configuration go to Manage > Accounts pages.