Our organization gets invitations for meetings that are both unsolicited and unwanted from persons unknown to them.  These invitations in ICS format end up in our calendars. We would like to be able to remove the invitation without sending a notification back to the chair of the meeting. A simple agent that deletes the document without sending a notification to the chair works, but I have asked IBM to make this an option within the usual calendaring interface. I believe that other organizations would also like this made part of the standard interface when responding to an invitation. If you would like to add your organization's name to the SPR, the SPR is NDIOAVSJJE.