https://bugs.kde.org/show_bug.cgi?id=378011
--- Comment #29 from Axel Braun <axel.br...@gmx.de> --- By chance I came around this issue again KMail 5.16.3 (20.12.3) If a list of mail recipients contains an underscore (like My_List), list is not exploded into single recipients. Workaround. Rename list to MyList, then it works. However, this is confusing for the user.... Operating System: openSUSE Tumbleweed 20210316 KDE Plasma Version: 5.21.2 KDE Frameworks Version: 5.80.0 Qt Version: 5.15.2 -- You are receiving this mail because: You are watching all bug changes.