I have been asked to provide a report of all users who have full delegate permissions assigned to their mailbox. I am aware of running the ldifde query which will list all delegate access based on the publicDelegate field in ADSIedit. This is not what I require as it lists all delegate rights (ie calendar rights etc not just full mailbox rights). I need a query that will identify only users who have FULL delegate rights assigned to their mailbox (ie the full mailbox access permissions is ticked in the Mailbox Rights tab) and who the users are that have these permissions . I assume the best way of doing this is to run a query based on mailbox permissions, but not sure what tool or Exchange utility can do this. Can anyone suggest an appropriate way of doing this, without requiring 3rd party tools. We are running Exchange 2003 sp2 on Windows Server 2003 AD environment.