Version:           1.8.1 (using KDE KDE 3.4.1)
Installed from:    SuSE RPMs

if you send a mail and encrypte the message, you can open the folder 'to send'. then the mail is in process to preview. cause it's encrypted you have to enter the gpg password. in this time the message is send, and moved out of the 'to send' folder. if you then enter the password the program seamed to try open the deleted message and crashes with Sign 11.

Using host libthread_db library "/lib/tls/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 1105304448 (LWP 6013)]
[KCrash handler]
#7  0x0074000a in ?? ()
#8  0x428b9e3d in KMReaderWin::parseMsg ()
   from /opt/kde3/lib/libkmailprivate.so
#9  0x427fb743 in KMReaderWin::displayMessage ()
   from /opt/kde3/lib/libkmailprivate.so
#10 0x42800dcc in KMReaderWin::updateReaderWin ()
   from /opt/kde3/lib/libkmailprivate.so
#11 0x428e879b in KMReaderWin::qt_invoke ()
   from /opt/kde3/lib/libkmailprivate.so
#12 0x4109c31e in QObject::activate_signal ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#13 0x4109cac6 in QObject::activate_signal ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#14 0x413f0359 in QTimer::timeout () from /usr/lib/qt3/lib/libqt-mt.so.3
#15 0x410c154f in QTimer::event () from /usr/lib/qt3/lib/libqt-mt.so.3
#16 0x41039baf in QApplication::internalNotify ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#17 0x4103b773 in QApplication::notify () from /usr/lib/qt3/lib/libqt-mt.so.3
#18 0x40d4f7a1 in KApplication::notify () from /opt/kde3/lib/libkdecore.so.4
#19 0x4102e35c in QEventLoop::activateTimers ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#20 0x40fe7156 in QEventLoop::processEvents ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#21 0x41051b41 in QEventLoop::enterLoop () from /usr/lib/qt3/lib/libqt-mt.so.3
#22 0x41051986 in QEventLoop::exec () from /usr/lib/qt3/lib/libqt-mt.so.3
#23 0x4103b63f in QApplication::exec () from /usr/lib/qt3/lib/libqt-mt.so.3
#24 0x08063625 in main ()