Migrated to SBS08/Exchange 2007 over the weekend. Process went very well. We have a Go Daddy SSL certificate installed so we can access OWA and RWW externally and have no issues. Internally Outlook prompts us with a certificate message, I have hunted the web for a solution and honestly cannot find one that fits our setup. I have attached a screen shot of the error. Outlook works fine and Exchange is working properly despite the error, but I need to get this resolved. Anyone experience this?