Linking to reports from email list
We were just asked by a client how they could check where single mails have been sent to. That can be found in the Reports (wp-admin/admin.php?page=followup-emails-reports) under said email's name.
May I suggest to add a link "View Report" to the Emails list (wp-admin/admin.php?page=followup-emails)? Or even better make links out of Sent/Opens/Clicks in that list's Stats column.