I just installed mailwizz bulkemailchecker extension, and tested importing 3 lists with about 10.000 emails each. It seems to stalls between 1.000 and 2.000 records checked , and then finish importing my lists without verifying the rest of my list. I´m using ( http://api-v4.bulkemailchecker.com ) with list import via MySQL database. Is there a solution for this? Any logs available after import?