Strange behavior from Nodemailer - node.js

Question

I have a strange bug with nodemailer , that's my code
await transporter.sendMail({
from: "noreply#myDomainName.com",
to: this.inputs.email,
subject: "Accessing your account",
html: emailTemplate
});
the email sent to my users from my personal account
myPersonalEmail#gmail.com not from noreply#myDomainName.com
I use my personal account in the transporter - but why considering it ?
here's the transporter configs
process.env.EMAIL_SENDING_CONFIG includes
myPersonalEmail#gmail.com#myPersonalEmailPassword
var transporter = nodemailer.createTransport({
host: "smtp.gmail.com",
service: "gmail",
port: 587,
secure: false,
auth: {
user: process.env.EMAIL_SENDING_CONFIG.split("#")[0],
pass: process.env.EMAIL_SENDING_CONFIG.split("#")[1]
}
});
By the way , this email noreply#myDomainName.com is not exist , if this related to the issue

Answer 1

you need to pass your custom domain inside your auth propriety as mentioned in nodmailer document https://nodemailer.com/smtp/.
also you can't use a custom domain with a free account (FREE STMP)
So you need to configure a transporter with your custom domain info (host, port, user and password) You can find this info in the email configuration of your specific hosting provider.
var transporter = nodemailer.createTransport({
host: 'something.yourdomain.com',
port: 465,
secure: true, // true for 465, false for other ports
auth: {
user: 'username#mydomain.com', // your domain email address
pass: 'password' // your password
}
});
Then you can go on and define the mail options:
var mailOptions = {
from: '"Bob" <bob#bobsdomain.com>',
to: 'tom#gmail.com',
subject: "Hello",
html : "Here goes the message body"
};