I need a (windows) sendmail gizmo that does not depend on a local SMTP server. This link has one

http://drealmer.tumblr.com/post/253243287/gmail-blat-and-stunnel

I cannot get stunnel to go. I really don't understand any of this tunnelling stuff and I figured some clever geekzone person is bound to.  I am happy to pay a small number of hundreds of dollars for a working portable stunnel-blat setup (I know about blat already).