There’s nothing private about mail. Google’s Gmail sees to that.
Benjamin Mako Hill hosts his own mail. You might think that would keep him free of Google’s privacy-invading clutches. Yet he points out, more than half his mail comes from or goes through a Google account. Which means the bots get to read most of his stuff.
Despite the fact that I spend hundreds of dollars a year and hours of work to host my own email server, Google has about half of my personal email! Last year, Google delivered 57% of the emails in my inbox that I replied to. They have delivered more than a third of all the email I’ve replied to every year since 2006 and more than half since 2010.