This function only works for PolicyServer installed on Windows Server 2008 or Windows Server 2008 R2.
The Add role services and features required for SMTP Server window appears.
The Web Server IIS and SMTP Server installs.
IIS 6.0 Manager opens.
Mark Enable logging for future troubleshooting.
Repeat to specify all IP addresses on local server
For best results, create a Sender Policy Framework (SPF) DNS entry. To create an SPF record in other DNS Servers (BIND), consult the vendor documentation.
v=spf1 ip4:<external_PolicyServer_IP_address> -all