Interesting article on how to publish Exchange 2010 with the TMG firewall not joined to the domain. While the workgroup configuration is less secure than a domain joined TMG firewall, it’s something that some organizations might want to consider.
Check it out at:
http://clintboessen.blogspot.com/2011/09/forefront-threat-management-gateway.html
HTH,
Deb
DEBRA LITTLEJOHN SHINDER
MVP (Enterprise Security)
“MS SECURITY”
[email protected]