Hi... We have blocked incoming mails from yahoo, rediff...etc etc... using message delivery in the system manager. Is there a way where we can block even the outgoing mails to yahoo ...etc etc. using the some facilities in the Exchange 2003 Itself???? Thanks in advance Mahadevan Confidentiality Statement: This message is intended only for the individual or entity to which it is addressed. It may contain privileged, confidential information which is exempt from disclosure under applicable laws. If you are not the intended recipient, please note that you are strictly prohibited from disseminating or distributing this information (other than to the intended recipient) or copying this information. If you have received this communication in error, please notify us immediately by return email.