Hi Richard,please file this at the KDE bugzilla [1] and make sure that you get debug symbols in the backtrace first [2]. What version of Qt and Trojita are you using?
(Others, please Cc Richard when replying, he's not on this list.) Cheers, Jan [1] https://bugs.kde.org/enter_bug.cgi?product=trojita&format=guided [2] https://wiki.debian.org/HowToGetABacktrace -- Trojitá, a fast Qt IMAP e-mail client -- http://trojita.flaska.net/