Server.js

var express=require('express');
var nodemailer = require('nodemailer');
var app=express();
/*
Here we are configuring our SMTP Server details.
STMP is mail server which is responsible for sending and recieving email.
*/
//

var smtpTransport = nodemailer.createTransport("SMTP",{
service: "Gmail",
auth: {
user: "mhtranbn@gmail.com",
pass: "1234qwrE"
}
});
/*------------------SMTP Over-----------------------------*/

/*------------------Routing Started ------------------------*/

app.get('/',function(req,res){
res.sendfile('index.html');
});
app.get('/send',function(req,res){
var mailOptions={
to : "tranmanhhoang@gmail.com",
// subject : req.query.subject,
subject : req.query.to,
text : req.query.text
}
console.log(mailOptions);

smtpTransport.sendMail(mailOptions, function(error, response){
if(error){
console.log(error);
res.end("error");
}else{
console.log("Message sent: " + response.message);
res.end("sent");
}
});
});

/*--------------------Routing Over----------------------------*/

app.listen(3000,function(){
console.log("Express Started on Port 3000");
});