We are running Exchange 2010 on our domain and USER-A was set up with calendar delegates. When meeting requests were sent to USER-A, USER-B would receive the invitation also.
This was no longer required so USER-B was removed as a delegate through Power Shell
First I looked at what delegates were in place
Get-Mailbox -anr "USER-A" | Get-CalendarProcessing | select ResourceDelegates
This listed the USER-B
I then removed all with
Get-Mailbox -identity "USER-A" | Set-CalendarProcessing -ResourceDelegates $null
This completed and after re-running the first script again the USER-B had been removed.
Unfortunately this has not fixed the problem as the calendar invites are still being ghost copied to USER-B
I have seen a few posts around the net about this but none that fix this issue.
Any help is very much appreciated.