TMG 2010 - Autodiscover fails on Exchange 2010
I'm having trouble with the autodiscover feature in Exchange 2010, users can't setup Outlook from outside the domain network.
I ran the Microsoft Connectivity Test and it failed:
Our mail server is behind Forefront TMG 2010, but that path is published.
I don`t understand why TMG is blocking connections to that URL if it`s published on the rule.
Any help would be appreciated.
Regards.
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Start your 7-day free trialDid you try the "Test Rule" button on the TMG to verify that TMG is able to reach internal server ? What is the result ?
Also, cnayou show us the "To" tab settings, the "Authentication Delegation" tab settings and the "Bridging" tab settings ?
Do you publish also OWA with the smae TMG and does it work ?
the error message is rather conclusive on this
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Not totally my cup of tea but from what I understand isa creates a standard rule denying everybody from everywhere. Did you create a new access rule like described on this link?
https://support.microsoft.com/en-us/help/837451/the-isa-server-denies-the-specified-uniform-resource-locator-url-error-message-when-a-client-tries-to-connect-to-the-internet-through-isa-server-2006-isa-server-2004-or-microsoft-forefront-threat-management-gateway-medium-business-edition