In this article, I am going to go through the configuration of ISA to work with OWA and Outlook anywhere for Exchange 2007.

On your ISA server, open up the management console and click "Publish Exchange Web Client Access"

We create a rule for OWA 1st.

In drop down box, select Exchange 2007 and check on "Outlook Web Access"

There are 2 options in this screen, if your choose to publish a server farm then the step will appear as follow

Select the monitoring method, it depends on how is your network been setup, usually the 1st option is good enough.

Otherwise, it will come to this step. If the specific url can't be resolved by your ISA server, simply check on "Use a computer name or IP address to connect to the published server" option and specify the IP address of the url.

You need to create a Web listener for both OWA rule and Outlook anywhere rule.

You can select either "All IP.." option or "Specific IP.."

The typical case will use single certification option.

This step is optional.

You should test the rule before apply it to your server. If there are errors, click on it to view reason and fix it.

There are additional tweak you may want to do.

Go to the properties of your listener, click on "Authentication" tab and click on "Configure Validation Servers"

If your ISA server can't resolve your domain controller, here is the place to manually specify which servers to go.

You can define multiple login express or take the default one.

To verify if your OWA page is handled by ISA, simply go to your OWA page from public internet, and look at the login screen. You will notice a slight difference compare to the original OWA page.

Now, we need to create rule for Outlook Anywhere

Remember to check on "Publish additional folders.." option.

use the same listener as OWA rule

Now test your Outlook anywhere rule. If there is error, fix it before apply it.

Now you can proceed to use outlook to test Outlook Anywhere. If you are not very sure if you are connected using RPC/HTTPS or directly to mailbox server. You can press & hold your Ctrl key and right click the outlook icon on windows system tray and click on "Connection Status"

In next article, I am going to discuss about Autodiscover feature and how to achieve autodiscover for multi-tenant without the certification prompt by using one single certification.

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