Mails does not get deleted in mail app

[fingus]

Jolla E-Mail: Deleted E-Mails stay in Inbox on IMAP-E-Mail-Server [solved]

I have this workaround from another Thread here with equal Problem: I just deleting the ~/.qmf folder and reboot, after that E-Mail that are deleted with Jolla-E-Mail App are deleted from the IMAP-Inbox too.