How does Outlook handle email delivery and read receipts differently from PHP scripts using fputs?

Outlook handles email delivery and read receipts by using its own email server infrastructure and tracking mechanisms. When sending emails through Outlook, read receipts can be requested and tracked within the email client. On the other hand, PHP scripts using fputs to send emails do not have built-in mechanisms for handling read receipts or tracking email delivery. 

// Example PHP code snippet using PHPMailer library to send emails with read receipts
require 'PHPMailer/PHPMailer.php';

$mail = new PHPMailer();
$mail->IsSMTP();
$mail->Host = 'smtp.example.com';
$mail->Port = 587;
$mail->SMTPAuth = true;
$mail->Username = 'your@example.com';
$mail->Password = 'yourpassword';

$mail->SetFrom('from@example.com', 'Your Name');
$mail->AddAddress('recipient@example.com', 'Recipient Name');
$mail->Subject = 'Subject';
$mail->Body = 'Message body';
$mail->AddCustomHeader('Disposition-Notification-To','your@example.com');

if(!$mail->Send()) {
    echo 'Message could not be sent.';
    echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
    echo 'Message has been sent';
}

Keywords

Outlook email delivery read receipts PHP scripts fputs

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