What alternative methods can be used in PHP to capture bounced emails when return-path is not effective?

When the return-path method is not effective in capturing bounced emails, an alternative method is to use email headers to track delivery status notifications (DSN) or read receipts. By analyzing these headers, you can determine if an email has bounced and take appropriate action. Additionally, you can set up a dedicated email account to receive bounce notifications from your email service provider. 

// Example code snippet to capture bounced emails using email headers

// Read the email headers
$headers = getallheaders();

// Check for DSN or read receipt headers
if (isset($headers['Disposition-Notification-To']) || isset($headers['Return-Receipt-To'])) {
    // Email has bounced, take necessary action
    // For example, update the status in your database
    $email = $headers['From'];
    $status = "Bounced";
    // Update database with bounce status
    // Example: $db->updateEmailStatus($email, $status);
}

Keywords

PHP email handling bounced emails return-path error handling

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