I have some faculty that are not receiving instant email notifications in one course site (enroll...

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I have some faculty that are not receiving instant email notifications in one course site (enrolled in an administrator role) and are receiving instant email notifications in another (enrolled as a learner). Where else can I troubleshoot this problem?
 

So far, I've looked at Roles and Permissions, their individual notification settings (and the restrictions they have on). Is there something in configuration variables? Does it have to do with cascading roles? Thanks!