Hi, using FF TMG to publish OWA. For example External DNS outlookwebaccess.mydomain.tld resolves to TMG IP. Internal DNS of outlookwebaccess.mydomain.tld resolves to CAS. On CAS I have to disable FBA in order to get TMG bridging the authentication via Basic Auth (SSL encrypted) to CAS IIS for external user. When trying to access OWA from internal with FQDN as written before i have to use Basic Auth because of TMG, is it possible to run Basic Auth for TMG + FBA for internal user on CAS IIS? Thanks

Hi trztrz, Sorry for the delay. I find a similar post, please see: Publish Exchange 2010 while keeping FBA for internal users http://social.technet.microsoft.com/Forums/en-US/ForefrontedgePub/thread/0815d184-263b-4114-825a-ec6198bb8fd2 By the way, I think you can get better support in the TMG forum about your question: http://social.technet.microsoft.com/Forums/en-US/Forefrontedgegeneral/threadsPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Thank you for your reply, iam very busy at the moment. I gonna test it as soon as possible and will give you a feedback.