environment: AD Domain, Exchange 2003, Outlook 2007 on Windows XP sp3. We have 2 users who manage calendars for VP's. Just recently they both had the same issue happen: One cancelled a weekly recurring meeting on behalf of the VP, then got hundreds of cancellation notices, 1 for each date the meeting occurred- all the way back to 2005.
The other user added a new recurring meeting to a different VP's calendar and then watched as dozens of meeting invitations came pouring into her inbox, 1 for each instance of the meeting. We cannot figure out why this is happening only to them and why it suddenly began happening now. Both have managed outlook calendars on behalf of others for well over a year without incident.