Microsoft's latest Office 365 campaign is punching Gmail Man in the face, for peeking inside your emails to display relative ads. This is true, for the web client. If you access your email from a desktop client, you get rid of all the pesky ads. Google is claiming that algorithms do the dirty job and no human ever sees the contents of your email. Which of course would be ridiculous to think that humans can manage to scan billions of emails every day.