How can PHP developers ensure secure transmission of emails when using PHPMailer with SMTP servers?

To ensure secure transmission of emails when using PHPMailer with SMTP servers, PHP developers should enable SMTP encryption and verify the server's SSL certificate. This helps protect sensitive email content and credentials from being intercepted or tampered with during transmission. 

$mail = new PHPMailer(true);
$mail->isSMTP();
$mail->Host = 'smtp.example.com';
$mail->SMTPAuth = true;
$mail->Username = 'your@example.com';
$mail->Password = 'yourpassword';
$mail->SMTPSecure = 'tls'; // Enable TLS encryption
$mail->Port = 587; // Set the appropriate SMTP port
$mail->SMTPDebug = 2; // Enable debugging to view SSL certificate verification
$mail->SMTPOptions = array(
    'ssl' => array(
        'verify_peer' => true,
        'verify_peer_name' => true,
        'allow_self_signed' => false
    )
);

Keywords

PHP PHPMailer SMTP secure transmission email encryption

Related Questions