By default the scope for the Recipient Administration group is the entire organisation, however I am trying to figure out how to limit the scope of an equivalent group to a specific OU or domain, in a consolidated Exchange 2007 scenario where multiple domains may be sharing the same exchange server, but administration tasks are split with different groups of administrators carrying out user/mailbox admin and server admin. This was achievable in 2003 because of the split between ADUC & the System Manager - but now the ADUC extensions are gone. Can anyone suggest an easy way of achieving this ?