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Nodemailer is not working on production with NodeJS and gmail [duplicate]

I try to use nodemailer to implement a contact form using NodeJS but it works only on local it doesn't work on a remote server...
My error message :
[website.fr-11 (out) 2013-11-09T15:40:26] { [AuthError: Invalid login - 534-5.7.14 <https://accounts.google.com/ContinueSignIn?sarp=1&scc=1&plt=AKgnsbvlX
[website.fr-11 (out) 2013-11-09T15:40:26] 534-5.7.14 V-dFQLgb7aRCYApxlOBuha5ESrQEbRXK0iVtOgBoYeARpm3cLZuUS_86kK7yPis7in3dGC
[website.fr-11 (out) 2013-11-09T15:40:26] 534-5.7.14 N1sqhr3D2IYxHAN3m7QLJGukwPSZVGyhz4nHUXv_ldo9QfqRydPhSvFp9lnev3YQryM5TX
[website.fr-11 (out) 2013-11-09T15:40:26] 534-5.7.14 XL1LZuJL7zCT5dywMVQyWqqg9_TCwbLonJnpezfBLvZwUyersknTP7L-VAAL6rhddMmp_r
[website.fr-11 (out) 2013-11-09T15:40:26] 534-5.7.14 A_5pRpA> Please log in via your web browser and then try again.
[website.fr-11 (out) 2013-11-09T15:40:26] 534-5.7.14 Learn more at https://support.google.com/mail/bin/answer.py?answer=787
[website.fr-11 (out) 2013-11-09T15:40:26] 534 5.7.14 54 fr4sm15630311wib.0 - gsmtp]
[website.fr-11 (out) 2013-11-09T15:40:26] name: 'AuthError',
[website.fr-11 (out) 2013-11-09T15:40:26] data: '534-5.7.14 <https://accounts.google.com/ContinueSignIn?sarp=1&scc=1&plt=AKgnsbvlX\r\n534-5.7.14 V-dFQLgb7aRCYApxlOBuha5ESrQEbRXK0iVtOgBoYeARpm3cLZuUS_86kK7yPis7in3dGC\r\n534-5.7.14 N1sqhr3D2IYxHAN3m7QLJGukwPSZVGyhz4nHUXv_ldo9QfqRydPhSvFp9lnev3YQryM5TX\r\n534-5.7.14 XL1LZuJL7zCT5dywMVQyWqqg9_TCwbLonJnpezfBLvZwUyersknTP7L-VAAL6rhddMmp_r\r\n534-5.7.14 A_5pRpA> Please log in via your web browser and then try again.\r\n534-5.7.14 Learn more at https://support.google.com/mail/bin/answer.py?answer=787\r\n534 5.7.14 54 fr4sm15630311wib.0 - gsmtp',
[website.fr-11 (out) 2013-11-09T15:40:26] stage: 'auth' }
My controller :
exports.contact = function(req, res){
var name = req.body.name;
var from = req.body.from;
var message = req.body.message;
var to = '*******#gmail.com';
var smtpTransport = nodemailer.createTransport("SMTP",{
service: "Gmail",
auth: {
user: "******#gmail.com",
pass: "*****"
}
});
var mailOptions = {
from: from,
to: to,
subject: name+' | new message !',
text: message
}
smtpTransport.sendMail(mailOptions, function(error, response){
if(error){
console.log(error);
}else{
res.redirect('/');
}
});
}

I solved this by going to the following url (while connected to google with the account I want to send mail from):
https://www.google.com/settings/security/lesssecureapps
There I enabled less secure apps.
Done

See nodemailer's official guide to connecting Gmail:
https://community.nodemailer.com/using-gmail/
-
It works for me after doing this:
Enable less secure apps - https://www.google.com/settings/security/lesssecureapps
Disable Captcha temporarily so you can connect the new device/server - https://accounts.google.com/b/0/displayunlockcaptcha

Easy Solution:
var nodemailer = require('nodemailer');
var smtpTransport = require('nodemailer-smtp-transport');
var transporter = nodemailer.createTransport(smtpTransport({
service: 'gmail',
host: 'smtp.gmail.com',
auth: {
user: 'somerealemail#gmail.com',
pass: 'realpasswordforaboveaccount'
}
}));
var mailOptions = {
from: 'somerealemail#gmail.com',
to: 'friendsgmailacc#gmail.com',
subject: 'Sending Email using Node.js[nodemailer]',
text: 'That was easy!'
};
transporter.sendMail(mailOptions, function(error, info){
if (error) {
console.log(error);
} else {
console.log('Email sent: ' + info.response);
}
});
Step 1:
go here https://myaccount.google.com/lesssecureapps and enable for less secure apps. If this does not work then
Step 2
go here https://accounts.google.com/DisplayUnlockCaptcha and enable/continue and then try.
for me step 1 alone didn't work so i had to go to step 2.
i also tried removing the nodemailer-smtp-transport package and to my surprise it works. but then when i restarted my system it gave me same error, so i had to go and turn on the less secure app (i disabled it after my work).
then for fun i just tried it with off(less secure app) and vola it worked again!

You should use an XOAuth2 token to connect to Gmail. No worries, Nodemailer already knows about that:
var smtpTransport = nodemailer.createTransport('SMTP', {
service: 'Gmail',
auth: {
XOAuth2: {
user: smtpConfig.user,
clientId: smtpConfig.client_id,
clientSecret: smtpConfig.client_secret,
refreshToken: smtpConfig.refresh_token,
accessToken: smtpConfig.access_token,
timeout: smtpConfig.access_timeout - Date.now()
}
}
};
You'll need to go to the Google Cloud Console to register your app. Then you need to retrieve access tokens for the accounts you wish to use. You can use passportjs for that.
Here's how it looks in my code:
var passport = require('passport'),
GoogleStrategy = require('./google_oauth2'),
config = require('../config');
passport.use('google-imap', new GoogleStrategy({
clientID: config('google.api.client_id'),
clientSecret: config('google.api.client_secret')
}, function (accessToken, refreshToken, profile, done) {
console.log(accessToken, refreshToken, profile);
done(null, {
access_token: accessToken,
refresh_token: refreshToken,
profile: profile
});
}));
exports.mount = function (app) {
app.get('/add-imap/:address?', function (req, res, next) {
passport.authorize('google-imap', {
scope: [
'https://mail.google.com/',
'https://www.googleapis.com/auth/userinfo.email'
],
callbackURL: config('web.vhost') + '/add-imap',
accessType: 'offline',
approvalPrompt: 'force',
loginHint: req.params.address
})(req, res, function () {
res.send(req.user);
});
});
};

Worked fine:
1- install nodemailer, package if not installed
(type in cmd) : npm install nodemailer
2- go to https://myaccount.google.com/lesssecureapps and turn on Allow less secure apps.
3- write code:
var nodemailer = require('nodemailer');
var transporter = nodemailer.createTransport({
service: 'gmail',
auth: {
user: 'trueUsername#gmail.com',
pass: 'truePassword'
}
});
const mailOptions = {
from: 'any#any.com', // sender address
to: 'true#true.com', // list of receivers
subject: 'test mail', // Subject line
html: '<h1>this is a test mail.</h1>'// plain text body
};
transporter.sendMail(mailOptions, function (err, info) {
if(err)
console.log(err)
else
console.log(info);
})
4- enjoy!

I had the same problem. Allowing "less secure apps" in my Google security settings made it work!

Non of the above solutions worked for me. I used the code that exists in the documentation of NodeMailer. It looks like this:
let transporter = nodemailer.createTransport({
host: 'smtp.gmail.com',
port: 465,
secure: true,
auth: {
type: 'OAuth2',
user: 'user#example.com',
serviceClient: '113600000000000000000',
privateKey: '-----BEGIN PRIVATE KEY-----\nMIIEvgIBADANBg...',
accessToken: 'ya29.Xx_XX0xxxxx-xX0X0XxXXxXxXXXxX0x',
expires: 1484314697598
}
});

Same problem happened to me too. I tested my system on localhost then deployed to the server (which is located at different country) then when I try the system on production server I saw this error. I tried these to fix it:
https://www.google.com/settings/security/lesssecureapps Enabled it but it was not my solution
https://g.co/allowaccess I allowed access from outside for a limited time and this solved my problem.

I found the simplest method, described in this article mentioned in Greg T's answer, was to create an App Password which is available after turning on 2FA for the account.
myaccount.google.com > Sign-in & security > Signing in to Google > App Passwords
This gives you an alternative password for the account, then you just configure nodemailer as a normal SMTP service.
var smtpTransport = nodemailer.createTransport({
host: "smtp.gmail.com",
port: 587,
auth: {
user: "username#gmail.com",
pass: "app password"
}
});
While Google recommend Oauth2 as the best option, this method is easy and hasn't been mentioned in this question yet.
Extra tip: I also found you can add your app name to the "from" address and GMail does not replace it with just the account email like it does if you try to use another address. ie.
from: 'My Pro App Name <username#gmail.com>'

It is resolved using nodemailer-smtp-transport module inside createTransport.
var smtpTransport = require('nodemailer-smtp-transport');
var transport = nodemailer.createTransport(smtpTransport({
service: 'gmail',
auth: {
user: '*******#gmail.com',
pass: '*****password'
}
}));

Many answers advice to allow less secure apps which is honestly not a clean solution.
Instead you should generate an app password dedicated to this use:
Log in to your Google account
Go to security
Under Signing in to Google enable 2-Step Verification
Under Signing in to Google click on App passwords.
You'll now generate a new password. Select the app as Mail and the device as Other (Custom name) and name it.
Save the app password
You can now use this app password instead of your log in password.

Try disabling captchas in your gmail account; probably being triggered based on IP address of requestor.
See: How to use GMail as a free SMTP server and overcome captcha

For me is working this way, using port and security (I had issues to send emails from gmail using PHP without security settings)
I hope will help someone.
var sendEmail = function(somedata){
var smtpConfig = {
host: 'smtp.gmail.com',
port: 465,
secure: true, // use SSL,
// you can try with TLS, but port is then 587
auth: {
user: '***#gmail.com', // Your email id
pass: '****' // Your password
}
};
var transporter = nodemailer.createTransport(smtpConfig);
// replace hardcoded options with data passed (somedata)
var mailOptions = {
from: 'xxxx#gmail.com', // sender address
to: 'yyyy#gmail.com', // list of receivers
subject: 'Test email', // Subject line
text: 'this is some text', //, // plaintext body
html: '<b>Hello world ✔</b>' // You can choose to send an HTML body instead
}
transporter.sendMail(mailOptions, function(error, info){
if(error){
return false;
}else{
console.log('Message sent: ' + info.response);
return true;
};
});
}
exports.contact = function(req, res){
// call sendEmail function and do something with it
sendEmail(somedata);
}
all the config are listed here (including examples)

If you use Express, express-mailerwrapsnodemailervery nicely and is very easy to use:
//# config/mailer.js
module.exports = function(app) {
if (!app.mailer) {
var mailer = require('express-mailer');
console.log('[MAIL] Mailer using user ' + app.config.mail.auth.user);
return mailer.extend(app, {
from: app.config.mail.auth.user,
host: 'smtp.gmail.com',
secureConnection: true,
port: 465,
transportMethod: 'SMTP',
auth: {
user: app.config.mail.auth.user,
pass: app.config.mail.auth.pass
}
});
}
};
//# some.js
require('./config/mailer.js)(app);
app.mailer.send("path/to/express/views/some_view", {
to: ctx.email,
subject: ctx.subject,
context: ctx
}, function(err) {
if (err) {
console.error("[MAIL] Email failed", err);
return;
}
console.log("[MAIL] Email sent");
});
//#some_view.ejs
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title><%= subject %></title>
</head>
<body>
...
</body>
</html>

For some reason, just allowing less secure app config did not work for me even the captcha thing. I had to do another step which is enabling IMAP config:
From google's help page: https://support.google.com/mail/answer/7126229?p=WebLoginRequired&visit_id=1-636691283281086184-1917832285&rd=3#cantsignin
In the top right, click Settings Settings.
Click Settings.
Click the Forwarding and POP/IMAP tab.
In the "IMAP Access" section, select
Enable IMAP.
Click Save Changes.

all your code is okay only the things left is just go to the link https://myaccount.google.com/security
and keep scroll down and you will found Allow less secure apps: ON and keep ON, you will find no error.

Just add "host" it will work .
host: 'smtp.gmail.com'
Then enable "lesssecureapps" by clicking bellow link
https://myaccount.google.com/lesssecureapps

Google has disabled the Less Secure App Access, Below is New Process to use Gmail in Nodejs
Now you have to enable 2 Step Verification in Google (How to Enable 2 Step Auth)
You need to generate App Specific Password. Goto Google My Account > Security
Click on App Password > Select Other and you will get App Password
You can use normal smtp with email and App password.

exports.mailSend = (res, fileName, object1, object2, to, subject, callback)=> {
var smtpTransport = nodemailer.createTransport('SMTP',{ //smtpTransport
host: 'hostname,
port: 1234,
secureConnection: false,
// tls: {
// ciphers:'SSLv3'
// },
auth: {
user: 'username',
pass: 'password'
}
});
res.render(fileName, {
info1: object1,
info2: object2
}, function (err, HTML) {
smtpTransport.sendMail({
from: "mail#from.com",
to: to,
subject: subject,
html: HTML
}
, function (err, responseStatus) {
if(responseStatus)
console.log("checking dta", responseStatus.message);
callback(err, responseStatus)
});
});
}
You must add secureConnection type in you code.

I was using an old version of nodemailer 0.4.1 and had this issue. I updated to 0.5.15 and everything is working fine now.
Edited package.json to reflect changes then
npm install

Just attend those:
1- Gmail authentication for allow low level emails does not accept before you restart your client browser
2- If you want to send email with nodemailer and you wouldnt like to use xouath2 protocol there you should write as secureconnection:false like below
const routes = require('express').Router();
var nodemailer = require('nodemailer');
var smtpTransport = require('nodemailer-smtp-transport');
routes.get('/test', (req, res) => {
res.status(200).json({ message: 'test!' });
});
routes.post('/Email', (req, res) =>{
var smtpTransport = nodemailer.createTransport({
host: "smtp.gmail.com",
secureConnection: false,
port: 587,
requiresAuth: true,
domains: ["gmail.com", "googlemail.com"],
auth: {
user: "your gmail account",
pass: "your password*"
}
});
var mailOptions = {
from: 'from#gmail.com',
to:'to#gmail.com',
subject: req.body.subject,
//text: req.body.content,
html: '<p>'+req.body.content+' </p>'
};
smtpTransport.sendMail(mailOptions, (error, info) => {
if (error) {
return console.log('Error while sending mail: ' + error);
} else {
console.log('Message sent: %s', info.messageId);
}
smtpTransport.close();
});
})
module.exports = routes;

first install nodemailer
npm install nodemailer --save
import in to js file
const nodemailer = require("nodemailer");
const smtpTransport = nodemailer.createTransport({
service: "Gmail",
auth: {
user: "example#gmail.com",
pass: "password"
},
tls: {
rejectUnauthorized: false
}
});
const mailOptions = {
from: "example#gmail.com",
to: sending#gmail.com,
subject: "Welcome to ",
text: 'hai send from me'.
};
smtpTransport.sendMail(mailOptions, function (error, response) {
if (error) {
console.log(error);
}
else {
console.log("mail sent");
}
});
working in my application

You may need to "Allow Less Secure Apps" in your Gmail account (it's all the way at the bottom). You also may need to "Allow access to your Google account".
You also may need to "Allow access to your Google account".

This is my Nodemailer configuration which worked after some research.
Step 1: Enable lesssecureapp
https://www.google.com/settings/security/lesssecureapps
Step 2: The Nodemailer configuration for Gmail
Setting up the transporter : A transporter is going to be an object that can send mail. It is the transport configuration object, connection URL, or a transport
plugin instance
let transporter = nodemailer.createTransport({
service: 'gmail', // the service used
auth: {
user: process.env.EMAIL_FROM, // authentication details of sender, here the details are coming from .env file
pass: process.env.EMAIL_FROM_PASSWORD,
},
});
Writing the message
const message = {
from: 'myemail#gmail.com', // sender email address
to: "receiver#example.com, receiver2#gmail.com", // reciever email address
subject: `The subject goes here`,
html: `The body of the email goes here in HTML`,
attachments: [
{
filename: `${name}.pdf`,
path: path.join(__dirname, `../../src/assets/books/${name}.pdf`),
contentType: 'application/pdf',
},
],
Sending the mail
transporter.sendMail(message, function (err, info) {
if (err) { // if error
console.log(err);
} else {
console.log(info); // if success
}
});

I also had issues with nodemailer email sending when running on Vercel lambda in production.
What fixed it in my case was to await for sendMail Promise to resolve.
I also added nodemailer-smtp-transport like suggested in this thread but I don't think it made a difference.
Here is my whole function:
const nodemailer = require('nodemailer');
const smtpTransport = require('nodemailer-smtp-transport');
const transporter = nodemailer.createTransport(smtpTransport({
service: 'gmail',
auth: {
user: '***#gmail.com',
pass: process.env.SMTP_PASSWORD,
},
}));
async function contact(req: any, res: any) {
try {
const response = await transporter.sendMail({
from: '"*** <***gmail.com>', // sender address
to: "***#gmail.com", // list of receivers
subject: `***`, // Subject line
html: `${req.body.message}<br/><br/>${req.body.firstname} ${req.body.lastname} - <b>${req.body.email}</b>`, // html body
});
} catch (error: any) {
console.log(error);
return res.status(error.statusCode || 500).json({ error: error.message });
}
return res.status(200).json({ error: "" });
}
export default contact;

As pointed out by Yaach, as of May 30th, 2022, Google no longer supports Less Secure Apps, and instead switched over to their own Gmail API.

Here is the sample code for Gmail SMTP with nodemailer.
"use strict";
const nodemailer = require("nodemailer");
async function main() {
let transporter = nodemailer.createTransport({
host: "smtp.gmail.com",
transportMethod: "SMTP",
secureConnection: true,
port: 465,
secure: true, // upgrade later with STARTTLS
auth: {
user: "yourEmail#gmail.com",
pass: "Your App Specific password",
},
});
let info = await transporter.sendMail(
{
from: "yourEmail#gmail.com",
to: "to#gmail.com",
subject: "Testing Message Message",
text: "I hope this message gets delivered!",
html: "<b>Hello world?</b>", // html body
},
(err, info) => {
if (err) {
console.log(err);
} else {
console.log(info.envelope);
console.log(info.messageId);
}
}
);
}
main();

Less secure option is not supported anymore by gmail.
For sending email from third party, gmail is also not allowing with its user password.
You should now use App Password to resolve this issue.
Hope this link will help to set your app password.
https://support.google.com/mail/answer/185833?hl=en

There is another option to use SendGrid for email delivery with no failure. A lot of the time, Nodemailer gives failure for mail which could happen frequently.
Nodemailer can be found in the link.

NodeMailer error when sending email. On production only

I'm using the following code to create a SMTPtransporter that will be used to send emails. The code works perfectly fine on my computer. With Yarn version '1.22.17'.
import * as nodemailer from 'nodemailer';
import * as SMTPTransport from "nodemailer/lib/smtp-transport";
const poolOptions = {
pool: true,
maxConnections: 1,
maxMessages: 5
}
const smtpOptions = {
host: 'smtp.gmail.com',
port: 587,
secure: false,
auth: {
user: SMTP_USER,
pass: SMTP_PASSWORD
},
tls:{
ciphers: 'SSLv3',
rejectUnauthorized: false
}
}
const nodemailerOptions: SMTPTransport.Options = {
...poolOptions,
...smtpOptions
}
const transport = nodemailer.createTransport(nodemailerOptions);
The send email function :
export function sendMail(
to: string, subject: string, text: string, html: string) {
const mailOptions = {
from: 'Bobo <no-reply#bobo.bo>', to, subject, text, html
};
return new Promise((resolve, reject) => {
transport.sendMail(mailOptions, (error, info) => {
if (error) {
console.error(
`Failed to send email to ${to} with body [${text}]`, error);
reject(new Error('Email sending failed'));
} else {
console.log(
`Email sent to ${to} with subject [${subject}]`, info.response);
resolve();
}
});
});
}
Meanwhile in the server i got the following error each time i try to send an email :
{ Error: read ECONNRESET
at TCP.onStreamRead (internal/stream_base_commons.js:111:27)
errno: 'ECONNRESET',
code: 'ECONNECTION',
syscall: 'read',
command: 'CONN' }
It's the same app deployed in ubuntu server with same Yarn version.
If anyone can help i would be very grateful.
NOTE :: For the deployment on the server, i used Nginx to forward all the requests on port 80 to 3000 (App running). And the ports for SMTP are open (25,587)

It seems to be some kind of problem related to the TLS node library, there is an already question addressing this problem, you can find it here

The problem was due to the restriction in the network put by the hosting company. I adjusted the smtp host to one they allow trafic with.

Node Mailer does not work even though it says its successful

I have question about the nodemailer that I am working on. The result returns email sent,
but I do not get any email. I am sure I am doing something wrong and I have no idea what that is.
I will post my code below.
let transporter = nodemailer.createTransport({
//pool: true,
host: "*****.net",
port: ****,
secure: false,
auth: {
user: "****.com",
pass: "*****",
},
tls: {
// do not fail on invalid certs
rejectUnauthorized: false,
},
});
var mailOptions = {
from: '"xxx"<info#****.com>;', // sender address
to: result.recordset[0].toEmail, // list of receivers
subject: "NEW USER", // Subject line
html: result.recordset[0].content, // plain text body
};
transporter.sendMail(mailOptions, function (error, info) {
if (error) {
console.log(error);
} else {
console.log("Email sent: " + info.response);
}
});
transporter.verify(function (error, success) {
if (error) {
console.log(error);
} else {
console.log("Server is ready to take our messages");
}
});
AND THIS IS THE MESSAGE I GET FROM THE TERMINAL BELOW
Server is ready to take our messages
Email sent: 250 uPMSkJg8an7bs mail accepted for delivery

If you are using for example a cheap mail service, mails might be sent after some time. I had that problem before. Services use queue system and prioritize the mail requests based on the pricing. Other than that, you can check your spam folder just in case if that might be a problem.

Nodemailer connection timeout error using Godaddy SMTP server on aws

I am trying to send email using nodemailer using godaddy smtp server(secureserver.net).
On my local machine code works fine but when I deploy same code on aws server it gives Error: Connection timeout.
Here is my code
const nodemailer = require('nodemailer');
let transporter = nodemailer.createTransport({
service: 'Godaddy',
host: 'smtpout.secureserver.net',
secureConnection: true,
port: 465,
auth: {
user: 'xxx#zzzzzz.com',
pass: '*******'
}
});
let mailOptions = {
from: 'xxx#zzzzzz.com',
to: 'aaaa#gmail.com',
subject: 'Test sub',
html: 'Test body'
};
transporter.sendMail(mailOptions, function (error, info) {
if (error) {
console.log(error);
} else {
console.log('Email sent: ' + info.response);
}
});
I have added port 465/25 in outbound port list for the server
Please let me know any workaround this?

(Solution - Latest) This one has worked successfully.
static transport = nodeMailer.createTransport({
// service: 'Godaddy', <--- Dont add this anymore --->
host: 'smtpout.secureserver.net',
port: 465,
auth: {
user: config.get('application.mail.MAIL_SENDER'),
pass: config.get('application.mail.MAIL_SENDER_PASSWORD')
},
tls: { rejectUnauthorized: false }
});
SendMailService.transport.sendMail(mailOptions, function (error: Error, response: SentMessageInfo) {
if (error) {
loggerService.logError(' Error in mail send ' + error);
}
loggerService.logDebug(' response in mail send ' + response);
callback(error, response);
});
This has worked in my case. I am using GoDaddy professional mail service.
I was also getting connection refused and connection timeout for some changes but this one(above mentioned code had worked).
If still there is an issue then check for DNS records whether it is pointing properly under "My Domain >> DNS >> DNS management". Over there check for A type and MX.

Using nodemailer and smtp send mail without authentication

Below is my code. This works fine with gmail smtp server.
But when I use my office one (which does not require authentication) it fails
May be the syntax I am using is wrong.
below is the code working with gmail smtp:
var mailOptions = {
from: 'xxxx#abcd.com',
to: 'xxxxyy#abcd.com',
subject: 'hello world!',
html: '<img src="cid:logo">',
attachments: [{
filename: 'test.png',
path: 'D:/bbbbb/mmmm/src/test.png',
cid: 'logo' //same cid value as in the html img src
}]
};
transport.sendMail(mailOptions, (error, info) => {
if (error) {
console.log(error);
}
console.log(`Message sent: ${info.response}`);
});
As Our company smtp does not require authentication,
I have tried below code:
var transport = nodemailer.createTransport("smtps://xxxx#abcd.com:"+encodeURIComponent('') + "#xxxx.xxxrxx.com:25");
OR
var transport = nodemailer.createTransport("smtps://xxx.xxx.com:25");
but all resulted error
{ Error: 101057795:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol:openssl\ssl\s23_clnt.c:797:
at Error (native) code: 'ECONNECTION', command: 'CONN' }
My guess is syntax is wrong.
Can some one pls correct me
Thanks and Regards.

You can remove auth option from the example code when creating an SMTP Transport message.
so it should look like the following:
/**
* Initialize transport object
*/
const transporter = nodemailer.createTransport({
host: "", //Host
port: , // Port
secure: true
});
let mailOptions = {
from: , // sender address
to: , // list of receivers
subject: , // Subject line
text: , // plain text body
html: // html body
};
/**
* send mail with defined transport object
*/
transporter.sendMail(mailOptions,
(error, info) => {
});