What are the potential issues with using PHPMailer for automatic responses in PHP?

One potential issue with using PHPMailer for automatic responses in PHP is that it may not handle large volumes of emails efficiently, leading to performance issues or delays in sending emails. To solve this problem, you can implement a queue system to manage the sending of emails in batches, rather than sending them all at once. 

// Implementing a queue system for sending emails in batches using PHPMailer

// Include PHPMailer library
use PHPMailer\PHPMailer\PHPMailer;

// Initialize PHPMailer
$mail = new PHPMailer();

// Add email addresses and content to an array
$emailQueue = array(
    array('recipient1@example.com', 'Subject 1', 'Message 1'),
    array('recipient2@example.com', 'Subject 2', 'Message 2'),
    // Add more emails as needed
);

// Loop through the email queue and send emails in batches
foreach (array_chunk($emailQueue, 10) as $batch) {
    foreach ($batch as $email) {
        $mail->addAddress($email[0]);
        $mail->Subject = $email[1];
        $mail->Body = $email[2];
        $mail->send();
        $mail->clearAddresses();
    }
}

Keywords

PHPMailer automatic responses potential issues errors security vulnerabilities

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