https://bugs.kde.org/show_bug.cgi?id=388068 --- Comment #10 from SFA <sylvain.fabre at inpixal.com> --- Same issue with Tumbleweed, kmail 5.7 and latest akonadi Switching from SSL->TLS works for sendinfg 1 email, then error again. -- You are receiving this mail because: You are the assignee for the bug.