Version: (using KDE KDE 3.5.7) Compiler: gcc-4.1.2 CFLAGS="-O2 -pipe -march=athlon64 -msse3" OS: Linux Steps to Reproduce: 1. Create an event (of which you are the organizer) 2. Add an attendee (with an email address) 3. Delete the event 4. Watch kmail send the cancellation request Expected Behavior: korganizer should not send cancellation requests for events it never send invitations for to begin with.