smtpjs

1Email.send({
2    Host : "smtp.yourisp.com",
3    Username : "username",
4    Password : "password",
5    To : 'them@website.com',
6    From : "you@isp.com",
7    Subject : "This is the subject",
8    Body : "And this is the body"
9}).then(
10  message => alert(message)
11);