Exchange\Outlook 2003: How to remove calendar entries of user who has been deleted
 

A manager left a couple of months ago and his AD user account and
mailbox were deleted. Since then we have found meetings of his that
still exist in people's Outlook calendars and also appointments in the
calendars of meeting rooms. We would like to remove all of these, but
obviously we do not relish the laborious task of going through every
individual calendar to scour it for appointments with this man. Is
there any way of clearing these centrally - or at least finding all of
his appointments centrally?

We run Exchange 2003 with Outlook 2003.

Thanks,

C