In a TYPO3 10.4.33 with Powermail 8.3.3 some sent forms get a reply 'Email was just disclaimed'. This behaviour seems completely random. When comparing the data I can find no reason why some mails are disclaimed and others not. Spam factor of implicated mails is at 0%. What normally triggers this behaviour? Can't find anything related in the manual.
Tried to reproduce this with several forms but did not get this reply