Sending emails in Node.js is commonly done using the popular package Nodemailer. It's reliable and works with services like Gmail, Outlook, or any SMTP server.

✅ Step-by-Step: Sending Email with Node.js + Nodemailer

1. Install Nodemailer

bash
npm install nodemailer

2. Basic Email Example (Gmail)

js
const transporter = nodemailer.createTransport({  service: 'gmail',  auth: {    user: 'your_email@gmail.com',    pass: 'your_app_password'  // Use App Password if using Gmail with 2FA  }});// Email optionsconst mailOptions = {  from: 'your_email@gmail.com',  to: 'recipient@example.com',  subject: 'Hello from Node.js!',  text: 'This is a plain text email.',  html: '<h1>Hello 👋</h1><p>This is an HTML email.</p>'};// Send the emailtransporter.sendMail(mailOptions, (error, info) => {  if (error) {    return console.log('Error:', error);  }  console.log('Email sent:', info.response);});

🔐 Gmail Security Note

If you're using Gmail, you need to:

• Enable 2-Step Verification

• Create an App Password in your Google account settings

📧 You Can Also:

• Attach files with attachments

• Use templates (e.g., handlebars, pug, ejs)

• Send to multiple recipients

📎 Send Email with Attachment Example

js
const mailOptions = {  from: 'your_email@gmail.com',  to: 'recipient@example.com',  subject: 'With Attachment',  text: 'Check the attached file.',  attachments: [    {      filename: 'file.txt',      path: './file.txt'    }  ]};