Sorry for the OT, but if any Exchange Admins can help me our it would be most appreciated! I am in the process of setting up a Front-End/Back-End Exchange 2003 Config in my lab. I have both servers up and running, and my Front-end OWA has forms based authentication enabled and I can display the FBA logon page. Problem is that when I try to logon to the Front End OWA page I get "You could not be logged on to Outlook Web Access. Ensure that your user name and password are correct, and then try again". This happens when I use credentials in "user@xxxxxxxxxx" or "<netbios domain>\user" format. Weird this is that I can logon using the same ID\password to the OWA page on my Back-End server, so that tells me my credentials are okay. Any suggestions please?, I am running out of hair to pull out....