You must associate at least one Internet domain (such as novell.com, gw.novell.com, or support.novell.com) with your GroupWise system. These Internet domains need to exist in the domain name service (DNS).
After you have associated Internet domains with your GroupWise system, all users in your system can be addressed using any of the domains (for example, jsmith@novell.com, jsmith@gw.novell.com, and jsmith@support.novell.com). The addresses can be used both internally and externally.
You must assign each GroupWise user a preferred Internet domain. GroupWise uses the preferred Internet domain name when constructing the email addresses that are displayed in the GroupWise Address Book and in the To field of sent messages.
To make this process easier, GroupWise lets you assign a preferred Internet domain to be used as the default for your GroupWise system (for example, novell.com). The system’s preferred Internet domain is applied to all users in your GroupWise system. However, you can override the system’s preferred Internet domain at the domain, post office, or user level, meaning that different users within your GroupWise system can be assigned different preferred Internet domains. For example, users in one domain can be assigned gw.novell.com as their preferred Internet domain while users in another domain are assigned support.novell.com.