Transport rules, introduced with Exchange 2007, provided a lot of new options for administration of mail resulting in even more requests for additional functionality. This post show how it’s easy now to accomplish Transport rules request in Exchange 2010. The rules now’ve new predicates and actions extending possibilities of what can be done. In particular, the predicates for address matching that were previously only available on Edge role’re now available for Hub role as well! “For our e.g., the rule’ll restrict “Active Directory Mail enabled users” who’ve their ‘Department’ defined as ‘Temp Employees’ from sending mail to internet, except they must be allowed to send to 2 external domains called: ‘partnerdomain.com’ and ‘fourthcoffee.com’. Additionally, to reduce Helpdesk calls, you want to send an NDR when they violate the rule. For demo purposes I’ll use 2 Conditions, one Action and one Exception.” Refrence Exchange 2010 Transport Rule Predicates, and Transport Rule Actions on TechNet.