Email Faculty Refinement

I love the Email Faculty function, but there is a problem we've just found.  When I sent an email to the student's faculty to notify them that I need semester grades early because that student is graduating or is being considered for a GPA based award, the email went to this Spring semester's faculty as well as the faculty for the Fall Semester.  We've begun early registration, so the student actually has 2 "active" semesters at the same time.  It would be helpful to indicate (by semester?)  which group of faculty should receive the message.