We're in the process of migrating from Exchange 2007 to 2013. We noticed that outlook web apps are now being integrated into the Outlook client. The problem I'm seeing is we're being prompted to login to OWA in order access the feature. Is there any way to enable an auto login, while still keeping forms based authentication for OWA?
"... You can configure Integrated Windows authentication for Outlook Web App in Microsoft Exchange Server 2010. Integrated Windows authentication enables the server to authenticate users who are signed in to the network without prompting them for their user name and password and without transmitting information that isn't encrypted over the network."
Here