Perhaps your English isn't very good, but your post really doesn't make sense.
Both companies use automated scanning. Both read your emails. Simple. Where's the difference?
What they do with the emails AFTER reading them is no concern of mine; the very act that they read them at all is the privacy violation here and MS is as guilty as Google.
The difference is that Google voluntarily gives up that information where MS takes them to court and fights for it's costumers like they are now...
I am aware that if you don't want something on the internet reaching the wrong hands then only recourse is not to put it out there. However, I would trust MS over Google or Apple any day.