I suggest stop automatic processing of bounces by setting
bounce_processing variable to 'No' at the admin/bounce page.
Looks like your server is very busy and unsubscribing
process due to the bounce score may interfering.
You may also have to unsubscribe the problematic members
manually.
I suggest stop automatic processing of bounces by setting
bounce_processing variable to 'No' at the admin/bounce page.
Looks like your server is very busy and unsubscribing
process due to the bounce score may interfering.
You may also have to unsubscribe the problematic members
manually.