We have an executive who has two people that manage his calendar. They are both Delegates and both receive his calendar invitations. He does not receive them in his inbox at all.
Recently, both have complained of multiple instances where both they and the executive are sent a calendar invitation for a call/meeting/etc. However, only the invitation for them appears in their inbox. The invitation for the executive is not displayed, and the meeting/call does not show up as 'tentative' in his calendar.
This only happens about 10% of the time, but it is enough to cause problems.
I don't even know where to start looking here.
The executive is running Outlook 2007. One assistant is running Outlook 2010 and the other is running Outlook 2007. We have Exchange 2007.