https://bugs.kde.org/show_bug.cgi?id=388828
--- Comment #3 from Hartmut Manz <m...@intes.de> --- I am using a recent kde nenon and get the same problem. On my Server I can see that the problem is a empty from string. Maybe this helps My kmail is 4:17.12.1-0neon+16.04+xenial+build51 (5.7.1) -- You are receiving this mail because: You are watching all bug changes.