Version:           1.8.2 (using KDE KDE 3.4.2)
Installed from:    SuSE RPMs
OS:                Linux

In a local account (mbox files), I selected the Trash folder, then went to the folder list with th emouse and selected "Empty trash" in the context menu. Kmail crahsed with this backtrace:

(no debugging symbols found)
[KCrash handler]
#7  0x413696be in QGDict::look_string () from /usr/lib/qt3/lib/libqt-mt.so.3
#8  0x42825cda in KMHeaders::msgRemoved ()
   from /opt/kde3/lib/libkmailprivate.so
#9  0x42827ce3 in KMHeaders::qt_invoke () from /opt/kde3/lib/libkmailprivate.so
#10 0x410a220e in QObject::activate_signal ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#11 0x426ac537 in KMFolder::msgRemoved () from /opt/kde3/lib/libkmailprivate.so
#12 0x426e3f9f in KMFolder::qt_emit () from /opt/kde3/lib/libkmailprivate.so
#13 0x410a2241 in QObject::activate_signal ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#14 0x426ac357 in FolderStorage::msgRemoved ()
   from /opt/kde3/lib/libkmailprivate.so
#15 0x427ead53 in FolderStorage::removeMsg ()
   from /opt/kde3/lib/libkmailprivate.so
#16 0x42606ee9 in KMFolder::removeMsg () from /opt/kde3/lib/libkmailprivate.so
#17 0x427037a3 in KMMoveCommand::execute ()
   from /opt/kde3/lib/libkmailprivate.so
#18 0x42750799 in KMCommand::slotPostTransfer ()
   from /opt/kde3/lib/libkmailprivate.so
#19 0x42750857 in KMCommand::qt_invoke () from /opt/kde3/lib/libkmailprivate.so
#20 0x42750c8b in KMMenuCommand::qt_invoke ()
   from /opt/kde3/lib/libkmailprivate.so
#21 0x42750cf1 in KMMoveCommand::qt_invoke ()
   from /opt/kde3/lib/libkmailprivate.so
#22 0x410a220e in QObject::activate_signal ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#23 0x42689b52 in KMCommand::messagesTransfered ()
   from /opt/kde3/lib/libkmailprivate.so
#24 0x4270e73a in KMCommand::transferSelectedMsgs ()
   from /opt/kde3/lib/libkmailprivate.so
#25 0x4270ed5b in KMCommand::slotStart () from /opt/kde3/lib/libkmailprivate.so
#26 0x42750864 in KMCommand::qt_invoke () from /opt/kde3/lib/libkmailprivate.so
#27 0x42750c8b in KMMenuCommand::qt_invoke ()
   from /opt/kde3/lib/libkmailprivate.so
#28 0x42750cf1 in KMMoveCommand::qt_invoke ()
   from /opt/kde3/lib/libkmailprivate.so
#29 0x410a220e in QObject::activate_signal ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#30 0x413f4122 in QSignal::signal () from /usr/lib/qt3/lib/libqt-mt.so.3
#31 0x410bf763 in QSignal::activate () from /usr/lib/qt3/lib/libqt-mt.so.3
#32 0x410c71b3 in QSingleShotTimer::event ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#33 0x4103fa5f in QApplication::internalNotify ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#34 0x41041623 in QApplication::notify () from /usr/lib/qt3/lib/libqt-mt.so.3
#35 0x40d55971 in KApplication::notify () from /opt/kde3/lib/libkdecore.so.4
#36 0x4103420c in QEventLoop::activateTimers ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#37 0x40fecff6 in QEventLoop::processEvents ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#38 0x410579f1 in QEventLoop::enterLoop () from /usr/lib/qt3/lib/libqt-mt.so.3
#39 0x4104145f in QApplication::enter_loop ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#40 0x411b393e in QPopupMenu::exec () from /usr/lib/qt3/lib/libqt-mt.so.3
#41 0x4283342a in KMFolderTree::slotContextMenuRequested ()
   from /opt/kde3/lib/libkmailprivate.so
#42 0x42835b95 in KMFolderTree::qt_invoke ()
   from /opt/kde3/lib/libkmailprivate.so
#43 0x410a220e in QObject::activate_signal ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#44 0x41407ac5 in QListView::contextMenuRequested ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#45 0x4118e522 in QListView::contentsContextMenuEvent ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#46 0x411beca5 in QScrollView::viewportContextMenuEvent ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#47 0x411c060d in QScrollView::eventFilter ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#48 0x4118f5d8 in QListView::eventFilter () from /usr/lib/qt3/lib/libqt-mt.so.3
#49 0x42828906 in KMFolderTree::eventFilter ()
   from /opt/kde3/lib/libkmailprivate.so
#50 0x410a2aae in QObject::activate_filters ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#51 0x410a2b90 in QObject::event () from /usr/lib/qt3/lib/libqt-mt.so.3
#52 0x410d82cf in QWidget::event () from /usr/lib/qt3/lib/libqt-mt.so.3
#53 0x4103fa5f in QApplication::internalNotify ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#54 0x41041990 in QApplication::notify () from /usr/lib/qt3/lib/libqt-mt.so.3
#55 0x40d55971 in KApplication::notify () from /opt/kde3/lib/libkdecore.so.4
#56 0x40fdd193 in QETWidget::translateMouseEvent ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#57 0x40fdbd76 in QApplication::x11ProcessEvent ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#58 0x40fec9a8 in QEventLoop::processEvents ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#59 0x410579f1 in QEventLoop::enterLoop () from /usr/lib/qt3/lib/libqt-mt.so.3
#60 0x41057836 in QEventLoop::exec () from /usr/lib/qt3/lib/libqt-mt.so.3
#61 0x410414ef in QApplication::exec () from /usr/lib/qt3/lib/libqt-mt.so.3
#62 0x08063595 in ?? ()
#63 0xbfffeec0 in ?? ()
#64 0x00000001 in ?? ()
#65 0x00000001 in ?? ()
#66 0x00000000 in ?? ()
#67 0x00000000 in ?? ()
#68 0x00000001 in ?? ()
#69 0x0806879c in typeinfo name for QPtrList<KParts::Part> ()
#70 0x00000000 in ?? ()
#71 0x08067971 in typeinfo name for QPtrList<KParts::Part> ()
#72 0x08067dc2 in typeinfo name for QPtrList<KParts::Part> ()
#73 0x08c777ef in ?? ()
#74 0x40f23020 in ?? () from /usr/lib/qt3/lib/libqt-mt.so.3
#75 0x4000dbce in _dl_name_match_p () from /lib/ld-linux.so.2
#76 0x415f9e80 in __libc_start_main () from /lib/tls/libc.so.6
#77 0x080583d1 in ?? ()