Appointment Items
 

I have a custom form that has a messageClass. When the appontment item is
sent to a recieptent that custom form is sent with the
IPM.AppointmentItem.customform class. What I want to do is always ensure that
the meeting request that is recevied by the receipent as a normal appointment
item (even if it has access to the custom form). However for the meeting
organiser I always wnat to keep the orginal custom form.
I can do this at both add-on and/or form level. Can anybody help in the bst
way to always acheivie this?