Protecting Microsoft Exchange with ISA Server 2004 Firewalls: Integrating the ISA Firewall into an Established Network Infrastructure
If you didn't already know, ISA firewall's are the firewalls for protecting Microsoft Exchange Servers. One of the things the hampers adoption is the belief by many firewall and network admins that they need to change up their current network topologies in a big way to support a new ISA firewall. Not true! Check out this article I posted today to see how easy it is to get ISA firewall protection without having to re-jigger your entire network infrastructure to support it.
http://www.msexchange.org/articles/2004protectexch.html
Thanks!
Tom