We have been having some real problems with Exchange 2003 - specifically with four people being delegates for the CEO and working on his calendar. Every once in a while, an appointment that someone swears they put on his calendar doesn't appear. Today, a number of appointments that were created or changed on Friday of last week either disappeared or reverted to their pre-change condition.
I know that this is a bit of a vague question, but I'd love some suggestions as to where I can check to make sure that everything is set up correctly, either in Outlook or on the Exchange server.
Exchange 2003 with all patches as of today installed
Windows Server 2003
About 40 users total in a single AD forest
Lots of mail transactions and calendar appointments - CEO usually has 15 or more appointments per day
Each admin is a delegate with access to the CEO's calendar, and they send out meeting invitations from their own outlook, using his calendar (so the e-mail says from A on behalf of B)