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how to publish Exchange 2010 OWA behind ISA 2006 or TMG beta 3

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Hi folks,

Now Exchange 2010 is RTM, I have done my first migration to this new version at a customer. Everything ran fine, except for the Outlook Web App - Options features (also known as the Exchange Control Panel or ECP).

After a user logs in to his OWA, at first sight it runs oke; when clicking Options in the right corner, he gets a new OWA login form, after which the error "page not found" pops up.

Here's the solution:

- On the Exchange 2010 box, make sure you modify the authentication for the ECP webfolders to "basic & integrated", just like you have to do for the OWA webfolders (Exchange Server / CAS Role / ...)

- On the ISA 2006 or TMG beta 3 box, open up your OWA Publishing Rule, go to the "paths" tab, and add the following webfolders:

/EWS

/ecp

next to the /public, /owa, ... that are already shown

Restart the ISA firewall service, and you will notice everything runs owkay now.

The only thing you will lose here is the nice and smooth OWA 2010 FBA, as the "older" OWA 2007 form from ISA will be shown. but hey, we don't care that much about layouts, right?

'til next post

/Peter


Posted nov 20 2009, 11:58 by Peter De Tender
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