Directory and Resource Administrator 6.x
Directory and Resource Administrator 7.x
Modifying the Exchange 2000 mailbox properties generate a "UserSetInfo' operation instead of 'MailboxSetInfo' in the Application Log.
This is by design.
Modifying the Microsoft Exchange 2000 Mailbox properties of a user account triggers an UserSetInfo operation instead of a MailboxSetInfo operation. The MailboxSetInfo operation only triggers when modifying Exchange 5.5 Mailbox properties. This is because the Exchange 2000 Mailbox properties are stored in Active Directory whereas the Exchange 5.5 Mailbox properties are stored on the Exchange server.