I want to migrate a sbs2003 server to a new hardware with sbs2008. For this reason I had to prepare the old sbs2003 for the migration. The sbs best practices analyser tool shows me a problem with oma, exactly >Exchange-oma method of authentication is not default. By default only integrated windows and basic authentication methods are enabled<. I tried to enable integrated windows authentication in Server-Protocols-HTTP-virtual exchange server-oma-properties-authentication but the check is inactive. It will be influenced by other config parameters but I have no idea which one is it. Please can you help me asap.