Hi I'm trying to deploy a CAS solution to meet the following requirement: * Load balance two active/active sites. * If user from Site A resolving OWA URL to Site B NLB VIP for OWA, then an automatic redirection (without user intervention) should take place. The second requirement is the more important one as natively within Exchange a redirection does take place, but it requires a click from the user that directs them to the CAS server at their own site. What have others done with similar requirements? Is there a way to automatically redirect without the extra OWA page with the link to the correct CAS server? Thanks.