I have the same problem and cannot make a new thread here so I’m hanging onto this one. My send has also been paused. I had imported some old emails again which may have caused more bounces than usual, is this a possible reason and how can I fix it?
thanks in advance
P.S.: Plugin and WordPress are up-to-date, CRON and everything else is working as intended, too. Deliveries before have been finde.
It would be a great starting point if I would just be able to see which user uploaded an image to my NextGen Gallery. Is there no one with similar problems?