I was able to reproduce the crash quite easily, by making my disk completely full and sending me an email.
Knotify gave me the following message in french: "KMail a eu un problème critique et va se terminer. Le problème est : Impossible d'ajouter le message au dossier, l'espace disque est probablement faible." It happens when I receive a new mail while my disk is full. I am not sure that the gdb trace will be helpfull as I have no debugging symbol but i have attached it to this comment ** Attachment added: "gdb trace of kontact crashes when disk full" http://librarian.launchpad.net/6729741/gdb-kontact.txt -- kmail crashes on disk full https://launchpad.net/bugs/89039 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs