After recent KDE changes/updates KMail fails to connect to Exchange server (Outlook 365), does not update folders. On F5 just do nothing! Thunderburd works just fine.
Thank you for reporting this issue in KDE software. As it has been a while since this issue was reported, can we please ask you to see if you can reproduce the issue with a recent software version?
If you can reproduce the issue, please change the status to "REPORTED" when replying. Thank you!
That was many years ago, do not use this soft any more.