Publishing Exchange 2007 Services with ISA Server 2006 - Creating the Publishing Rule for Outlook Anywhere with Transparent Windows Authentication

One of the most popular questions we get regarding the ISA firewall and Exchange Server is how to get transparent authentication for the Outlook client. Most users prefer to store their passwords and don’t want to enter their passwords each time they open Outlook. The problem is that if you use basic authentication at the client and at the ISA firewall’s Web Listener, you will always need to enter credentials when Outlook starts up.

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