Hi All We are running Exchange 2003 Enterprise with front and back end concept. We are trying to backup of all mailbox backup with exmerge utility but its not working due to In Exchange 2003, built-in administrator accounts and built-in administrative groups inherit the Allow permission together with the Deny permission for the Send As permission and for the Receive As permission. We hv checked with microsoft website also but it won't work. http://support.microsoft.com/kb/823143/en-us Can anyone help regarding this issue ND DISCLAIMER:The information in this message may be privileged. If you have received it by mistake please notify the sender by return e-mail and delete the message from your system. Any unauthorised use or dissemination of this message in whole or in part is strictly prohibited. Any information in this message that does not relate to official business shall be understood to be neither given nor endorsed by the Confederation of Indian Industry.