I heard Recipient Policy , mail address policy is correnpondent setting for authoritative domain of Exch2010. If exchange 2003 receive maill from mailgateway server which recipient smtpdomain is not listed in mail address policy but that recipient mail address exist in own Exch2003Org, that received mail is deliverable ?

Hi miyaqiken, Yes, that received mail is deliverable. After Domain Name Service (DNS) is configured and working properly, you can use policies to add SMTP addresses to your users accounts. Alternatively, you can administer any of these properties individually by accessing the user object from the Active Directory Users and Computers Microsoft Management Console (MMC) snap-in. Related document for you: HOW TO: Configure Recipient Policies in Exchange http://support.microsoft.com/kb/249299 Thanks, EvanEvan Liu TechNet Community Support

Hi miyaqiken, Yes, that received mail is deliverable. After Domain Name Service (DNS) is configured and working properly, you can use policies to add SMTP addresses to your users accounts. Alternatively, you can administer any of these properties individually by accessing the user object from the Active Directory Users and Computers Microsoft Management Console (MMC) snap-in. Related document for you: HOW TO: Configure Recipient Policies in Exchange http://support.microsoft.com/kb/249299 Thanks, EvanEvan Liu TechNet Community Support