https://bugs.kde.org/show_bug.cgi?id=366238
--- Comment #6 from franz-joseph.barth...@kabelmail.de --- I like to add the observation, that the IMAP account works on all Thunderbird instances using either Windows or Linux. But it fails on all KDE instances including some 4.14 version on Windows delivered my Kolab and the most recent 16.12.0 on OpenSUSE Tumbleweed. I could perform some further tests in case I receive some detailed information on what to test. Furthermore, I can offer access to the IMAP server for testing. -- You are receiving this mail because: You are on the CC list for the bug.