i am recently testing zimbra open source 5.0.1_GA. i sent an appointment request (with answer request) from exchange server user to one of my zimbra user that uses thunderbird as client. i recieved an appointment and then i clicked on accept button but my exchange user doensn't recieved an answer and my zimbra user still see "accept" or "denied" button.

just want to report this.

best regard,
tita