If you go to a Student or Candidate List, click the "Columns" button, you can choose to have "Parents" and "Parents' Email" show. The problem with this is that the parents/emails are grouped AND they aren't listed in a specific order so you can't easily export to Excel and pair up their emails and names for a mail merge. Instead you have to create an Advanced List separately. It would be great to have the option to not only list the parents and their emails as a group, but also individually.