Application that crashed: kmail
Version of the application: 1.12.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-17-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
kmail boots and stops immediately. 

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[KCrash Handler]
#6  0x0115caca in QString::operator=(QString const&) () from /usr/lib/libQtCore.so.4
#7  0x0023c52f in KPIM::ProgressItem::setStatus(QString const&) () from /usr/lib/libkdepim.so.4
#8  0x0024f2b4 in KPIM::BroadcastStatus::setStatusMsgTransmissionCompleted(QString const&, int, int, int, int, bool, KPIM::ProgressItem*) () from /usr/lib/libkdepim.so.4
#9  0x00bcd1b3 in ?? () from /usr/lib/libkmailprivate.so.4
#10 0x00bcfa62 in ?? () from /usr/lib/libkmailprivate.so.4
#11 0x00bd39eb in ?? () from /usr/lib/libkmailprivate.so.4
#12 0x0121d263 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#13 0x0121dec2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#14 0x01222387 in ?? () from /usr/lib/libQtCore.so.4
#15 0x0122249c in ?? () from /usr/lib/libQtCore.so.4
#16 0x012173bf in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#17 0x038aff54 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#18 0x038b767c in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x004c8bfa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#20 0x012076cb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#21 0x012347ce in ?? () from /usr/lib/libQtCore.so.4
#22 0x012320e0 in ?? () from /usr/lib/libQtCore.so.4
#23 0x03497e88 in g_main_dispatch (context=0x912e290) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:1960
#24 IA__g_main_context_dispatch (context=0x912e290) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2513
#25 0x0349b730 in g_main_context_iterate (context=0x912e290, block=<value optimized out>, dispatch=1, self=0x9134468) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2591
#26 0x0349b863 in IA__g_main_context_iteration (context=0x912e290, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#27 0x0123202c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#28 0x03950be5 in ?? () from /usr/lib/libQtGui.so.4
#29 0x01205c79 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#30 0x012060ca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x0120853f in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#32 0x038afdd7 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#33 0x0804a702 in _start ()

Reported using DrKonqi