I have the same problem. Found this bug report for Fedora: https://bugzilla.redhat.com/show_bug.cgi?id=1422626
The Workaround also works for me: 1. Load Kmail 2. Hit "Settings->KMail" 3. Press OK (no need to change anything, just hit OK) - After this the settings appear to reload. regards Markus Köberl