There is no line, any line would be simply arbitrary. If you get your email stolen and the people who got access to it found out you were doing some illegal ac

There is no line, any line would be simply arbitrary. If you get your email stolen and the people who got access to it found out you were doing some illegal activities, then it would be irresponsible not to publish your email to expose those illegal activities, especially if you are a Fortune 500 company.