Application that crashed: kontact
Version of the application: 4.3.3
KDE Version: 4.3.3 (KDE 4.3.3)
Qt Version: 4.5.3
Operating System: Linux 2.6.31.6-166.fc12.x86_64 x86_64

What I was doing when the application crashed:
I can reproduce this issue very readily.  If I attempt to reply, reply all, or forward an e-mail from our internal remedy ticketing system it will crash KMail every time.  I can provide the e-mail directly but cannot provide it within the bug tracker.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
The current source language is "auto; currently asm".
[KCrash Handler]
#5  KMReaderWin::htmlMail (this=0x0) at /usr/src/debug/kdepim-4.3.3/kmail/kmreaderwin.cpp:2558
#6  0x00007f9a2bbeff3f in KMail::ObjectTreeParser::processMultiPartAlternativeSubtype (this=0x7fffce0ee200, node=<value optimized out>) at /usr/src/debug/kdepim-4.3.3/kmail/objecttreeparser.cpp:1182
#7  0x00007f9a2bbefa26 in KMail::ObjectTreeParser::parseObjectTree (this=0x7fffce0ee200, node=0x4099e20) at /usr/src/debug/kdepim-4.3.3/kmail/objecttreeparser.cpp:296
#8  0x00007f9a2b989a44 in KMMessage::parseTextStringFromDwPart (this=<value optimized out>, root=0x4099e20, parsedString=<value optimized out>, codec=@0x7fffce0ee418, isHTML=@0x7fffce0ee42f)
    at /usr/src/debug/kdepim-4.3.3/kmail/kmmessage.cpp:502
#9  0x00007f9a2b989e8c in KMMessage::asPlainText (this=0x2daf980, aStripSignature=true, allowDecryption=true) at /usr/src/debug/kdepim-4.3.3/kmail/kmmessage.cpp:527
#10 0x00007f9a2b98c310 in KMMessage::asQuotedString (this=0x2daf980, aIndentStr=..., selection=<value optimized out>, aStripSignature=<value optimized out>, allowDecryption=<value optimized out>)
    at /usr/src/debug/kdepim-4.3.3/kmail/kmmessage.cpp:603
#11 0x00007f9a2bd30e54 in KMail::TemplateParser::processWithTemplate (this=<value optimized out>, tmpl=...) at /usr/src/debug/kdepim-4.3.3/kmail/templateparser.cpp:310
#12 0x00007f9a2bd2de6d in KMail::TemplateParser::process (this=0x3, aorig_msg=<value optimized out>, afolder=<value optimized out>, append=<value optimized out>)
    at /usr/src/debug/kdepim-4.3.3/kmail/templateparser.cpp:194
#13 0x00007f9a2b99494f in KMMessage::createReply (this=0x2daf980, replyStrategy=<value optimized out>, selection=<value optimized out>, noQuote=<value optimized out>, 
    allowDecryption=<value optimized out>, selectionIsBody=<value optimized out>, tmpl=<value optimized out>) at /usr/src/debug/kdepim-4.3.3/kmail/kmmessage.cpp:824
#14 0x00007f9a2bc0dc50 in KMReplyToCommand::execute (this=0x3f20d50) at /usr/src/debug/kdepim-4.3.3/kmail/kmcommands.cpp:1106
#15 0x00007f9a2bc0666a in KMCommand::slotPostTransfer (this=0x3f20d50, result=OK) at /usr/src/debug/kdepim-4.3.3/kmail/kmcommands.cpp:275
#16 0x00007f9a2bc107c3 in KMCommand::qt_metacall (this=0x3f20d50, _c=InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffce0f07f0)
    at /usr/src/debug/kdepim-4.3.3/x86_64-redhat-linux-gnu/kmail/kmcommands.moc:87
#17 0x000000300bf5408c in QMetaObject::activate (sender=0x3f20d50, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7fffce0f07f0) at kernel/qobject.cpp:3112
#18 0x00007f9a2bc037ee in KMCommand::messagesTransfered (this=<value optimized out>, _t1=OK) at /usr/src/debug/kdepim-4.3.3/x86_64-redhat-linux-gnu/kmail/kmcommands.moc:102
#19 0x00007f9a2bc1e87c in KMCommand::transferSelectedMsgs (this=0x3f20d50) at /usr/src/debug/kdepim-4.3.3/kmail/kmcommands.cpp:369
#20 0x00007f9a2bc1eaaf in KMCommand::slotStart (this=0x3f20d50) at /usr/src/debug/kdepim-4.3.3/kmail/kmcommands.cpp:267
#21 0x00007f9a2bc107a6 in KMCommand::qt_metacall (this=0x3f20d50, _c=InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffce0f0a20)
    at /usr/src/debug/kdepim-4.3.3/x86_64-redhat-linux-gnu/kmail/kmcommands.moc:86
#22 0x000000300bf5408c in QMetaObject::activate (sender=0x4a2ece0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3112
#23 0x000000300bf5906f in QSingleShotTimer::timerEvent (this=0x4a2ece0) at kernel/qtimer.cpp:298
#24 0x000000300bf4e08e in QObject::event (this=0x4a2ece0, e=0x7fffce0f1030) at kernel/qobject.cpp:1074
#25 0x0000003015d8f65c in QApplicationPrivate::notify_helper (this=0x192c0a0, receiver=0x4a2ece0, e=0x7fffce0f1030) at kernel/qapplication.cpp:4065
#26 0x0000003015d968ce in QApplication::notify (this=<value optimized out>, receiver=0x4a2ece0, e=0x7fffce0f1030) at kernel/qapplication.cpp:4030
#27 0x0000003015611a76 in KApplication::notify (this=0x7fffce0f1390, receiver=0x4a2ece0, event=0x7fffce0f1030) at /usr/src/debug/kdelibs-4.3.3/kdeui/kernel/kapplication.cpp:302
#28 0x000000300bf3ee6c in QCoreApplication::notifyInternal (this=0x7fffce0f1390, receiver=0x4a2ece0, event=0x7fffce0f1030) at kernel/qcoreapplication.cpp:610
#29 0x000000300bf698d2 in sendEvent (event=<value optimized out>, receiver=<value optimized out>) at kernel/qcoreapplication.h:213
#30 QTimerInfoList::activateTimers (event=<value optimized out>, receiver=<value optimized out>) at kernel/qeventdispatcher_unix.cpp:580
#31 0x000000300bf6729d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#32 0x000000300263922e in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#33 0x000000300263cc18 in ?? () from /lib64/libglib-2.0.so.0
#34 0x000000300263cd3a in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#35 0x000000300bf671e6 in QEventDispatcherGlib::processEvents (this=0x18fbb70, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#36 0x0000003015e21ffe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#37 0x000000300bf3d772 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#38 0x000000300bf3db44 in QEventLoop::exec (this=0x7fffce0f12d0, flags=...) at kernel/qeventloop.cpp:201
#39 0x000000300bf3fcd9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#40 0x0000000000403d17 in main (argc=<value optimized out>, argv=<value optimized out>) at /usr/src/debug/kdepim-4.3.3/kontact/src/main.cpp:218

This bug may be a duplicate of or related to bug 218857

Reported using DrKonqi