Application that crashed: kontact
Version of the application: 4.3.0 pre
KDE Version: 4.2.91 (KDE 4.2.91 (KDE 4.3 >= 20090609)) "release 1"
Qt Version: 4.5.1
Operating System: Linux 2.6.27.23-0.1-default x86_64
Distribution: "openSUSE 11.1 (x86_64)"

What I was doing when the application crashed:
I tried to redirect an email. Selected redirect and searched adressbook by keyboard-strokes. Then I hit enter to select adress and klicked the button to send the mail. After this the crashreport popped up.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  DwHeaders::FindField (this=0x100000000, aFieldName=0x7fb20eccbf7c "content-type") at /usr/src/debug/kdepim-4.2.91svn979380/mimelib/headers.cpp:287
#6  0x00007fb20ecbb310 in DwHeaders::HasContentType (this=0x100000000) at /usr/src/debug/kdepim-4.2.91svn979380/mimelib/headers.cpp:698
#7  0x00007fb210686320 in applyHeadersToMessagePart (headers=@0x100000000, aPart=0x7fb20eccbf7c) at /usr/src/debug/kdepim-4.2.91svn979380/kmail/kmmessage.cpp:2647
#8  0x00007fb210686f27 in KMMessage::bodyPart (aDwBodyPart=0x189b4d0, aPart=0x1696438, withBody=true) at /usr/src/debug/kdepim-4.2.91svn979380/kmail/kmmessage.cpp:2723
#9  0x00007fb2109b7881 in statusBarMessage (this=<value optimized out>, url=@0x7fff30f17550, w=<value optimized out>) at /usr/src/debug/kdepim-4.2.91svn979380/kmail/partNode.h:99
#10 0x00007fb2109b76e5 in KMail::URLHandlerManager::statusBarMessage (this=0x190e2f0, url=@0x7fff30f17550, w=0xc80f90) at /usr/src/debug/kdepim-4.2.91svn979380/kmail/urlhandlermanager.cpp:323
#11 0x00007fb210777c0a in KMReaderWin::slotUrlOn (this=0xc80f90, aUrl=@0xc932d0) at /usr/src/debug/kdepim-4.2.91svn979380/kmail/kmreaderwin.cpp:2007
#12 0x00007fb210778b81 in KMReaderWin::qt_metacall (this=0xc80f90, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff30f17780)
    at /usr/src/debug/kdepim-4.2.91svn979380/build/kmail/kmreaderwin.moc:175
#13 0x00007fb2245c2c22 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#14 0x00007fb22859a582 in KHTMLPart::onURL(QString const&) () from /usr/lib64/libkhtml.so.5
#15 0x00007fb2285b1308 in KHTMLPart::overURL(QString const&, QString const&, bool) () from /usr/lib64/libkhtml.so.5
#16 0x00007fb2285b358e in KHTMLPart::handleMouseMoveEventOver(khtml::MouseMoveEvent*) () from /usr/lib64/libkhtml.so.5
#17 0x00007fb2285b393b in KHTMLPart::khtmlMouseMoveEvent(khtml::MouseMoveEvent*) () from /usr/lib64/libkhtml.so.5
#18 0x00007fb2245bd30d in QObject::event(QEvent*) () from /usr/lib64/libQtCore.so.4
#19 0x00007fb2232a078d in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#20 0x00007fb2232a8a2a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#21 0x00007fb2253e908b in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#22 0x00007fb2245ad15c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#23 0x00007fb22858d628 in KHTMLView::mouseMoveEvent(QMouseEvent*) () from /usr/lib64/libkhtml.so.5
#24 0x00007fb2232f1686 in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#25 0x00007fb22367275b in QFrame::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#26 0x00007fb22858a94d in KHTMLView::widgetEvent(QEvent*) () from /usr/lib64/libkhtml.so.5
#27 0x00007fb22858abc4 in KHTMLView::eventFilter(QObject*, QEvent*) () from /usr/lib64/libkhtml.so.5
#28 0x00007fb2245ac458 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#29 0x00007fb2232a075c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#30 0x00007fb2232a918a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#31 0x00007fb2253e908b in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#32 0x00007fb2245ad15c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#33 0x00007fb2232a83d8 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib64/libQtGui.so.4
#34 0x00007fb223312149 in ?? () from /usr/lib64/libQtGui.so.4
#35 0x00007fb2233111b5 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib64/libQtGui.so.4
#36 0x00007fb223338384 in ?? () from /usr/lib64/libQtGui.so.4
#37 0x00007fb21de580fb in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#38 0x00007fb21de5b8cd in ?? () from /usr/lib64/libglib-2.0.so.0
#39 0x00007fb21de5ba8b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#40 0x00007fb2245d689f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#41 0x00007fb223337b0f in ?? () from /usr/lib64/libQtGui.so.4
#42 0x00007fb2245ab9f2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#43 0x00007fb2245abdbd in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#44 0x00007fb2245ae0a4 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#45 0x0000000000404995 in main (argc=1, argv=0x7fff30f1be28) at /usr/src/debug/kdepim-4.2.91svn979380/kontact/src/main.cpp:218

Reported using DrKonqi