Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources

kmail crashes when i try to check my emails of one of my imap accounts with the following output: 

Anwendung: KMail (kmail), Signal SIGSEGV
0x00007f3da7faace1 in nanosleep () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7f3dad4e5750 (LWP 25560))]

Thread 2 (Thread 0x7f3d90b80950 (LWP 25573)):
#0  0x00007f3da7fd5642 in select () from /lib64/libc.so.6
#1  0x00007f3da9d7d366 in ?? () from /usr/lib64/libQtCore.so.4
#2  0x00007f3da9cb4f72 in ?? () from /usr/lib64/libQtCore.so.4
#3  0x00007f3da9a41070 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f3da7fdc0ed in clone () from /lib64/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f3dad4e5750 (LWP 25560)):
[KCrash Handler]
#5  0x00007f3dac2113fc in KMFolderImap::slotListFolderResult(KJob*) () from /usr/lib64/libkmailprivate.so.4
#6  0x00007f3dac217684 in KMFolderImap::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkmailprivate.so.4
#7  0x00007f3da9db1454 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#8  0x00007f3dac9ccae2 in KJob::result(KJob*) () from /usr/lib64/libkdecore.so.5
#9  0x00007f3dac9cce5f in KJob::emitResult() () from /usr/lib64/libkdecore.so.5
#10 0x00007f3daa61d900 in KIO::SimpleJob::slotFinished() () from /usr/lib64/libkio.so.5
#11 0x00007f3daa61da35 in KIO::ListJob::slotFinished() () from /usr/lib64/libkio.so.5
#12 0x00007f3daa6226fd in KIO::ListJob::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkio.so.5
#13 0x00007f3da9db1454 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#14 0x00007f3daa6c7981 in KIO::SlaveInterface::dispatch(int, QByteArray const&) () from /usr/lib64/libkio.so.5
#15 0x00007f3daa6c55a2 in KIO::SlaveInterface::dispatch() () from /usr/lib64/libkio.so.5
#16 0x00007f3daa6b8a4e in KIO::Slave::gotInput() () from /usr/lib64/libkio.so.5
#17 0x00007f3daa6b8d58 in KIO::Slave::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkio.so.5
#18 0x00007f3da9db1454 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#19 0x00007f3daa5f0341 in KIO::ConnectionPrivate::dequeue() () from /usr/lib64/libkio.so.5
#20 0x00007f3daa5f09ea in KIO::Connection::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkio.so.5
#21 0x00007f3da9dac105 in QObject::event(QEvent*) () from /usr/lib64/libQtCore.so.4
#22 0x00007f3da8b731bd in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#23 0x00007f3da8b7af8a in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#24 0x00007f3dacf38b0b in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#25 0x00007f3da9d9d091 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#26 0x00007f3da9d9dd3a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQtCore.so.4
#27 0x00007f3da9dc5863 in ?? () from /usr/lib64/libQtCore.so.4
#28 0x00007f3d9f1540db in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#29 0x00007f3d9f1578ad in ?? () from /usr/lib64/libglib-2.0.so.0
#30 0x00007f3d9f157a6b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#31 0x00007f3da9dc54ef in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#32 0x00007f3da8c0397f in ?? () from /usr/lib64/libQtGui.so.4
#33 0x00007f3da9d9b9a2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#34 0x00007f3da9d9bb2d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#35 0x00007f3da9d9dffd in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#36 0x0000000000402deb in main ()

This doesn't occur when I'm not connected to the internet. I have openSUSE packages, version 4.1.87