You can select whether the mail service associated with a virtual domain uses the system-wide password file to determine users within that domain or uses a private user list. If you want user names to be the same throughout your virtual domains, choose ``Use system (/etc/passwd) users''. If you want users within each virtual domain to be distinct, use a private user list. If you use the system-wide password file to define your user accounts, you must use the Account Manager to manage them. See ``Administering user accounts'' for more information.
If you choose to use a private user list,
you can add and delete users as well as change
their passwords by clicking on the Mail button
on the Internet Services page with the appropriate
virtual domain selected.