you manage a single domain named widgets. organizational units (ous) have been created for all company departments. computer and user accounts have been moved into their corresponding department ous. the ceo has requested the ability to send emails to managers and team leaders. he'd like to send a single email and have it automatically forwarded to all users in the list. because the email list might change frequently, you do not want the email list to be used for assigning permissions. what should you do?