<!DOCTYPE html> <html> <head> <title>Send Mail</title> <script src= "https://smtpjs.com/v3/smtp.js"> </script> <script type="text/javascript"> function sendEmail() { Email.send({ Host: "smtp.gmail.com", Username: "sender@email_address.com", Password: "Enter your password", To: 'receiver@email_address.com', From: "sender@email_address.com", Subject: "Sending Email using javascript", Body: "Well that was easy!!", }) .then(function (message) { alert("mail sent successfully") }); } </script> </head> <body> <form method="post"> <input type="button" value="Send Email" onclick="sendEmail()" /> </form> </body> </html>