I have upgraded form exchange 2003 ent to exchange 2010. under org.config, hub transport, email address policy, right click edit "the specified email address policy could't be edited. Email address policies created with lagacy version of exchange must be upgraded using 'set-emailaddresspolicy........"My email server is working fine. do I need this email address policy? also my exchange 2003 is no more there (deleted). Should I have to make another one and apply? Please help and also why do we need this policy?