[ashr]

While you mentioned that you would like to know more details, at the same time you make it sound like you know the current inner workings of how Microsoft spam filters work.

Do you work for Microsoft spam filtering/email software teams and know the details you mentioned and thus have the inside information? Even then, I am not sure how you can extend that to what are the spam filtering techniques that Microsoft Research has been working on lately.

[yajoe]

Fair questions and no details to share :). I don't work for Microsoft, but my path has crossed with the FOPE team a few times where we got into specifics about their platform. Hence my surprise to see this article about how their tech is used by research.