I have a user who has sent meeting requests to people inside and outside our organization that have been declined or removed from their calendars and they don't know why. They say the people have accepted the meetings, but later a decline message was sent and no one declined the meeting.
I have tracking the messages in Tracking Log Explorer and see the Accept & Decline messages. But they give no reason that I can see, like NDR emails would give.
We are using Exchange 2010 SP2 RU4 and a mix of Outlook 2007 & 2010.
How do I find a cause for this?
Thanks