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I'm a little confused about setting up the Email policy. &nbsp;TechNet states that Forefront Protection for Exchange and Exchange Hub tranport role are required for this to work - but why am I allowed to configure it if I don't have either of those installed on my TMG server? &nbsp;The response to this question may make the next 2 questions moot:<br />
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During the configuration, the authoritative domain example lists the 2 examples &quot;server.contoso.com, *.contoso.com&quot; - we only have one domain, so would the proper response be simply contoso.com ?<br />
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Last, I'm uncertain as to the meaning of &quot;Specify the public domain name or IP address the e-mail listener provides in response to SMTP session initiation messages (HELO,EHLO)&quot; &nbsp;this *sounds* like it should be the external DNS name of my Exchange server, i.e. mail.contoso.com - *not* mail.contoso.local <br />
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Thanks!
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I'm a little confused about setting up the Email policy.  TechNet states that Forefront Protection for Exchange and Exchange Hub tranport role are required for this to work - but why am I allowed to configure it if I don't have either of those installed on my TMG server?  The response to this question may make the next 2 questions moot:

During the configuration, the authoritative domain example lists the 2 examples "server.contoso.com, *.contoso.com" - we only have one domain, so would the proper response be simply contoso.com ?

Last, I'm uncertain as to the meaning of "Specify the public domain name or IP address the e-mail listener provides in response to SMTP session initiation messages (HELO,EHLO)"  this *sounds* like it should be the external DNS name of my Exchange server, i.e. mail.contoso.com - *not* mail.contoso.local 

Thanks!

Forefront TMG E-mail policy requirements?

Microsoft Forefront, formerly known as Internet Security and Acceleration Server (ISA Server), is a network router, firewall, antivirus program, VPN server and web cache that runs on Windows servers. It includes identity management and protection systems, and discontinued systems for threat management and network protection, along with protection for Sharepoint and Exchange. The scope of discussions includes forward and reverse proxy, application and service publishing, virtual private networks (VPNs), outbound access rules, SSL certificates and network routing within either a single node or an highly-available array pairing.

Microsoft Forefront ISA Server

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.