How to Send Email Using SMTP in PHP | Step-by-Step Guide

Learn how to send email using SMTP in PHP with this step-by-step guide. We'll show you how to use PHPMailer to send email via SMTP, and provide example code to get you started.

ashish2790 ashish2790
Apr 3, 2023 - 17:56
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To send an email using SMTP in PHP, you can use the built-in PHPMailer class. Here's an example of how to use PHPMailer to send an email using SMTP:

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require 'vendor/autoload.php';

// Create a new PHPMailer instance
$mail = new PHPMailer(true);

try {
    //Server settings
    $mail->SMTPDebug = 0;                                 // Enable verbose debug output
    $mail->isSMTP();                                      // Set mailer to use SMTP
    $mail->Host = 'smtp.example.com';                     // Specify main and backup SMTP servers
    $mail->SMTPAuth = true;                               // Enable SMTP authentication
    $mail->Username = 'yourusername';                     // SMTP username
    $mail->Password = 'yourpassword';                     // SMTP password
    $mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
    $mail->Port = 587;                                    // TCP port to connect to

    //Recipients
    $mail->setFrom('[email protected]', 'Mailer');
    $mail->addAddress('[email protected]', 'Recipient');     // Add a recipient

    //Content
    $mail->isHTML(true);                                  // Set email format to HTML
    $mail->Subject = 'Subject';
    $mail->Body    = 'This is the HTML message body <b>in bold!</b>';
    $mail->AltBody = 'This is the plain text version of the email body for non-HTML email clients.';

    $mail->send();
    echo 'Message has been sent';
} catch (Exception $e) {
    echo 'Message could not be sent. Error: ', $mail->ErrorInfo;
}

Note that in this example, we assume you have already installed PHPMailer using Composer. If you haven't, you can install it by running the following command in your terminal:

composer require phpmailer/phpmailer

Also, make sure to replace the SMTP server details, username, and password with your own SMTP server details, username, and password.

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