Can anyone give me some advice on how to solve the issue of recipients being flagged as Chronic Non-Responders? What are some ways I can ensure that they start receiving emails again?
Please find this interesting articles which shows how to manage Chronic Bounces & Non Responders:
Data Management Best Practices – Resources for Managing Bounces
Data Management Strategies – Managing Chronic Non-responders (never open or click) Part I
Data Management Strategies – Managing Chronic Non-responders (Never open or click) Part II