You can restrict registration with Rights Management for
certain external users or user groups. This option is useful, for
example, to allow access to a certain user group but exclude specific
individuals who are part of the group.
The following settings are located in the Email Restriction Filter
area of the Invited User Registration page.
Exclusion:
Type the email address of a user or group to exclude. To
exclude multiple users or groups, type each email address on a new
line. To exclude all users who belong to a particular domain, enter
a wildcard and the domain name. For example, to exclude all users
in the example.com domain, enter *.example.com.
Inclusion:
Type the email address of a user or group to include. To
include multiple users or groups, type each email address on a new
line. To include all users who belong to a particular domain, enter
a wildcard and the domain name. For example, to include all users
in the example.com domain, enter *.example.com.