Calendar Server software has multiple domains enabled by default. Do not change the value of the following ics.confparameter: service.virtualdomain.support="yes".
Once you have completed the preparation work described in Chapter 10, Setting Up a Multiple Domain Calendar Server 6.3 Environment, you can add new domains.
Each domain has a set of attributes and preferences that you can set. These attributes are part of the icsCalendarDomain object class. The attributes include preferences such as access rights, access control lists (ACLs), domain searches, access rights for domain searches, user status, and proxy logins.