I prepare an outgoing message and send.  It includes photographs attached, using a small size to stay within limits.  The message does not appear in the "Outgoing" folder, but is sitting in the "Tasks" box, showing that it is "Executing".  Sits there for literally hours, blocking other outgoing messages waiting behind it.  It can be highlighted, but it cannot be deleted, completed, removed, etc..  It simply sits, freezing the system.  The "Stop" box is grayed out, leaving only "Hide" and "Details", which are useless.