What is the best way to send bulk emails to users using PHP?

Sending bulk emails to users using PHP can be achieved by utilizing a library like PHPMailer or Swift Mailer. These libraries provide functionalities to send emails in bulk while handling issues like SMTP authentication, attachments, and HTML content. By using these libraries, you can efficiently send personalized emails to a large number of users without overwhelming your server. 

// Include the PHPMailer Autoload file
require 'vendor/autoload.php';

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

// Set up the SMTP server settings
$mail->isSMTP();
$mail->Host = 'smtp.example.com';
$mail->SMTPAuth = true;
$mail->Username = 'your@example.com';
$mail->Password = 'your_password';
$mail->SMTPSecure = 'ssl';
$mail->Port = 465;

// Set the sender and recipient email addresses
$mail->setFrom('your@example.com', 'Your Name');
$mail->addAddress('recipient1@example.com', 'Recipient Name');
$mail->addAddress('recipient2@example.com', 'Recipient Name');

// Set the email subject and body
$mail->Subject = 'Subject of the Email';
$mail->Body = 'Body of the Email';

// Send the email
if ($mail->send()) {
    echo 'Email sent successfully';
} else {
    echo 'Error sending email: ' . $mail->ErrorInfo;
}

Keywords

SMTP PHPMailer mail function email queue email deliverability

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