javascript - Nodemailer with Express App won't send email on Button click -

using default set nodemailer, email send our internal mail server fine when app starts code included on app.js page.

//app.js var nodemailer = require('nodemailer'); var transporter = nodemailer.createtransport({   host: 'mail.oursite.com', }); var mailoptions = {   from: 'couponrequest@company.com', // sender address   to: 'myaddy@company.com', // list of receivers   subject: 'hello ✔', // subject line   text: 'hello world ✔', // plaintext body   html: '<b>hello world ✔</b>' // html body }; // send mail defined transport object transporter.sendmail(mailoptions, function(error, info) {   if (error) {     return console.log(error);   }   console.log('message sent: ' + info.response); }); 

then when switching things around breaks , nothing happens when trying make happen button click.

app.js:

var nodemailer = require('nodemailer'); app.get('/users', routes.users); 

users.js

var express = require('express'); var router = express.router(); var nodemailer = require('nodemailer');  /*  * post addcoupon request.  */ router.post('/addcoupon', function(req, res) {   // create reusable transporter object using smtp transport   var transporter = nodemailer.createtransport({     host: 'mail.primeshine.com',   }); }); module.exports = router; 

index.js

var express = require('express'); var router = express.router(); var nodemailer = require('nodemailer');  /*  * post addcoupon request.  */ router.post('/addcoupon', function(req, res) {   // create reusable transporter object using smtp transport   var transporter = nodemailer.createtransport({     host: 'mail.primeshine.com',   }); }); module.exports = router; 

global.js

// add coupon request function addcoupon(event) {   event.preventdefault();    var mailoptions = {     from: 'couponrequest@company.com', // sender address     to: 'myaddy@company.com', // list of receivers     subject: 'hello ✔', // subject line     text: 'hello world ✔', // plaintext body     html: '<b>hello world ✔</b>' // html body   };    // send mail defined transport object   transporter.sendmail(mailoptions, function(error, info) {     if (error) {       return console.log(error);     }     console.log('message sent: ' + info.response);   }); }; 

i tried use relevant code send it. works fine sending info mongodb button when adding user info doesn't submit when try have send email. not sure if have in wrong place or if else wrong... in advance help!

when used nodemailer send emails email account had create transport authentication:

/* define transportation */ var transport = nodemailer.createtransport(smtptransport({     host: 'posteo.de',     port: 465,     secure: true,     auth: {         user: 'username',         pass: 'password'     },     maxconnections: 5,     maxmessages: 10 })); 

not sure if if necessary in case maybe helps.