How to package this algorithm?
RobGR: I don't know if this would make money as a web service, but I think you are right to try it -- it could work.Personally, as a developer, I would be more interested in licensing the algorithm or code from you.  In my case the potential use would be for a desktop application, that is closed source.  Essentially it would be a filter for a local file search engine, which is part of a larger product.   Would you be interested in this ?  It would not be an exclusive arrangement, so you could continue to persue other revenue methods.Also, I suggest that you test the algorithm to see if the amount of content stripped and tossed is a good identifier of spam emails, if the algorithm is fast enough it may have use for that.