Relay server of godaddy server issue with express app contact form - node.js

Question

From my express application, I am trying to send the contact form from godaddy relay server. locally it works fine. but after I hosted with godaddy server it's not working. my local code: ( working using gmail properties )
app.post("/send_mail", function (req, res) {
let { text } = req.body;
const transporter = nodemailer.createTransport({
host: 'smtp.gmail.com',
port: 25,
secure: true,
auth: {
user: "xxxxxx#gmail.com",
pass: "xxxxxxxx"
}
});
let message = {
from: "from#email.com",
to: "xxxx#gmail.com",
subject: "Enquiry from Deane Project Management",
html: `
<hr />
<h1>Request for: ${text.option || "No title"}</h1>
<span>Name: ${text.username}</span><br/>
<span>Email: ${text.email}</span><br/>
<span>Phone: ${text.phone || "No phone"}</span><br/>
<span>Message:</span><br/>
<p>${text.message || "No message"}</p>
<hr />
`
}
transporter.sendMail(message, function (err, info) {
if (err) {
console.log(err);
} else {
console.log('sent', info);
}
});
res.send(200);
});
I am taken this reference,(https://in.godaddy.com/help/send-form-mail-using-an-smtp-relay-server-953#cpanel) relay server so updated my server app.js like this: But not works. I am not getting any error as well. from from end it's shows success message. But no email received yet.
app.post("/send_mail", function(req, res) {
let {text} = req.body;
const transporter = nodemailer.createTransport({
host: 'localhost',
port: 25,
secure: false
});
let message = {
from: "from#email.com",
to: "xxxxx#gmail.com",
subject: "Enquiry from Deane Project Management",
html: `
<hr />
<h1>Request for: ${text.option||"No title"}</h1>
<span>Name: ${text.username}</span><br/>
<span>Email: ${text.email}</span><br/>
<span>Phone: ${text.phone||"No phone"}</span><br/>
<span>Message:</span><br/>
<p>${text.message||"No message"}</p>
<hr />
`
}
transporter.sendMail(message, function(err, info) {
if (err) {
console.log(err);
} else {
console.log('sent',info);
}
});
res.send(200);
})