Hi,We are deploying Exchange 2007 CAS servers on NLB and publishing the OWA through ISA 2006. For that we have to change the Authentication to Basic in Client Access Server OWA property. For the External users they are getting Farmbased authentication through ISA but Internal users are getting a popup instead of FBA. But my client crying for the FBA for internal users as well. I am breaking my head without any solution. I need to give FBA for the internal users.Is there any way to access the internal users through ISA (but don't want to go all the way to clound to reach ISA) or can we do something in Exchange settings. Please help!!!!! Thanks in Advance,Nattu

Point the Internal DNS A Record forOWAto the ISA IP address. You can test this by configuring your host file to point to the ISA server first to validate it works but I don't see a problem with it. BP

Thanks a lot Bardapony for your reply. I had fixed the issue buy creating a Primary zone in my local DNS as mail.mydomain.com and created a A Record with blank on host name and IP address pointed to my ISA Server. Everything is working fine.Note: I also tried earlier to point the IP address directly to ISA which doesn't worked.Thanks & Regards,Nattu

Glad to hear you got it working!BP