Has anyone had any experience installing DomainKeys in IIS? A Google search seems to suggest that DomainKeys cannot just be "plugged in" to the MS SMTP service. I'm happy to use a third-party component (if said component is cheap / free - ideally with .net source code) to send DomainKeys verified mail, but have no idea what component would do this. (At least - a component that you can download ready built. sendmail.org has one that requires a million steps to build and install it and needs about 3 other programs installing / building.)