SMTP-Authentication

When building a website with PHP and you need to send emails using SMTP authentication, you can follow a similar approach. PHPMailer is a popular choice for sending authenticated emails in web applications. Here's how you can set up SMTP authentication for a website using PHPMailer:

1. Download PHPMailer: Download the PHPMailer library from the official websites.
   
   
2. Include PHPMailer downloaded folder in your website folder.
   
   
3. Go to your form file e.g. contact.php and connect your Mailer file in it
   
   composer require phpmailer/phpmailer

require 'phpmailer/PHPMailerAutoload.php';

4. Add these basic PHPMailer codes in your file. Here are basic PHPMailer codes:
   
   

<?php

use PHPMailer\PHPMailer\PHPMailer;

use PHPMailer\PHPMailer\SMTP;

use PHPMailer\PHPMailer\Exception;

require 'path/to/PHPMailer/src/PHPMailer.php';

require 'path/to/PHPMailer/src/SMTP.php';

require 'path/to/PHPMailer/src/Exception.php';

// Create a new PHPMailer instance

$mail = new PHPMailer(true);

try {

    // Server settings

    $mail->isSMTP();

    $mail->Host       = 'smtp.example.com'; // Your SMTP server

    $mail->SMTPAuth   = true;

    $mail->Username   = 'your_username'; // Your SMTP username

    $mail->Password   = 'your_password'; // Your SMTP password

    $mail->SMTPSecure = 'tls'; // Use TLS encryption

    $mail->Port       = 587; // Your SMTP server's port

    // Sender and recipient

    $mail->setFrom('your_email@example.com', 'Your Name');

    $mail->addAddress('recipient@example.com', 'Recipient Name');

    // Email content

    $mail->isHTML(true);

    $mail->Subject = 'Subject';

    $mail->Body    = 'This is the HTML message body';

    $mail->AltBody = 'This is the plain text message body';

    // Send the email

    $mail->send();

    echo 'Message has been sent';

} catch (Exception $e) {

    echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";

}

?>

You need to obtain the SMTP server host, port, username, and password from your email service provider or hosting provider. These credentials are required for authenticating and sending emails. You can also get these details from your hosting dashboard  => Email Accounts => Email setting/Manage option.

5. Integrate this code with your website's form processing logic. When a user submits a form, your PHP script can use this code to send an email to the specified recipient.
   
   
6. Replace the placeholder values in the code with your actual SMTP server and email credentials. These are the values that you received from your SMTP service provider.

By following these steps and using the PHPMailer library, you can easily set up SMTP authentication for sending emails from your website. This ensures that your emails are delivered reliably and securely.