Hello Friends :We are going to use Exchange Server 2007 as our internal mail server , i want to prevent my domain users to send emails to one or more email accounts that belongs to the management of the company , is that possible in eschange server to prevent some special users to be not able to send emails to managers ?Thank you .Network is my LOVE

Easily done, either by setting delivery restrictions on the manager's mailboxes, or by a transpor rule.