The email recipients associated with a particular group must have membership in that group. Members are included in a group by adding their email addresses. This can be done by either editing the group file directly or using the pmx-list command. The groups are stored in the members-per-group directory.
Members must be specified as email address parts; that is, they must take the form of individual addresses, subdomains, domains, or the first part of the email address. For example:
See the pmx-list man page for more information.