I was running Exchange 2007, Server and AD 2003 and all my desktops were part of a domain and they ran win 2003 and Office 2003. I've since upgraded the domain client systems to Win7 and office 2010. And instead of using my Exchange server we have since outsourced our email to an external Exchange Email Service provider. The new provider uses Autodiscover for clients to connect to their Exchange server.
My problem is that: When I attempt to connect a client's oultook to the external provider's Exchange using autodiscover the client outlook continues to attempt to try and connect to the internal Exchange Server (I have already turned off Autodiscover for the internal Exchange Server) unless I disconnect the client desktop from the domain. When I disconnect the client system from the domain it finds the external provider's Exchange Server just find.
Can anyone tell me how to keep my client system's membership to the domain so they can access all those resourced and also successfully bypass the internal exchange server (which we are not using anymore) but connect to the external provider's Exchange Server via autoscover?