Electronic mail, or email, is a method of exchanging digital messages between people using digital devices such as computers, mobile phones and other electronics. Email first entered substantial use in the 1960s and by the mid-1970s had taken the form now recognized as email. Email operates across computer networks, which today is primarily the Internet. Write a function witch help you to verify if a string given is a mail address or not, true if you want to say yes it's a mail, and false if not a mail address. links may be help you: 1 , 2