is there any to restrict email flow between the storage group in the same administrative group in exchange 2003. Basically i want to set resriction so that users from one department can send email to other department, but all users are in same server.please provide solution to achive this. do i need to install new exchange server for this ?waiting for reply....... Regards

Hi Umesh,Not sure if this is possible, but if you want for some of your users, try this (i have not tested this). To restrict internal email you would have to setup each user account - Exchange General tab | Delivery Restrictions | Accept messages: select "Only from" and populate the field with something like an empty distribution group. Raj

And you can use the "Ethical Wall" feature of Exchange 2007 if you decide to install a new Exchange 2007 server. It can be donevery easy.How to Configure an Ethical Wallhttp://technet.microsoft.com/en-us/library/bb123878.aspxFrank Wang

In Exchange 2003 you can also consider creating Dynamic Distribution groups with filters having Storage Groups and use the way what Raj suggested. Thanks.Vishal Ramnani | MCITP - Exchange 2007 | MCSE Messaging | MCTS - Win 2008 Config