I'm looking at a course where the instructor went hog-wild and invited almost all of the students with all of the alternate email addresses they could find for them. This leaves me with a roster with most of the students added 2, or sometimes 3 times (with different emails), most of them in "Pending" status. The instructor asked me for a list of all of the invited/added students, and there doesn't appear to be a clear path to do so.
There are 338 (or so) of these. I could click the stacked-dots menu on each and select "User Details", then copy and paste the email address there, for each of these, but that is going to be an extremely time-consuming (and tedious) task.