https://bugs.kde.org/show_bug.cgi?id=417098
--- Comment #3 from stakano...@libero.it --- Well I have currently the check working with: STARTTLS on 587 PLAIN server smtp.web.de Please try to log into the web.de account directly. There is a menu setting I think that you have to "confirm". I then did change all the account to 2 factor authorization with U2F and nitrokey. After saving it worked. If it is actually based on this with you too (changing and then saving) please report back that I can close this as invalid. If it does not, please report back as it is till valid. There are a few changes I did still (I shifted to opensuse 15.2 and back), I did install unbound as recursive server for dns. But first I would go for checking the account setting page of webde and change somthing and back and then save. -- You are receiving this mail because: You are watching all bug changes.