Recently yahoo is criticized for their e-mail scanning method. Yahoo is using e-mail
scanning technology in its new version to filter spam and to show relative ads. That means
you are shown ads relative to your e-mail content.
But it is a question of privacy. Yahoo is now under strong criticism for this.
But google is also using same type of technology.
Yahoo says it is doing with their users consent and still users may use previous version.
Other e-mail service provider Microsoft says, it do not read users e-mail and we give users
privacy utmost importance. Hotmail and windows live protects user’s e-mails so that other
can’t access these.