I'm not sure how to handle it by mass action.
I created the Filter and selected "Wait Confirmation" + "Newsletter List" -> 406 results.
I clicked on mass action "add email in the queue" and selected my created Campagin-Followup Newsletter.
All emails were added to the queue an after processing the queue I got the results "email not sent" -> Reason "email not confirmed".
Of course they are not confirmed, that's the reason for the reminder.
How could I solve this? Do you know it or maybe the ACYBA-Team has a hint or solution for this.