如何知道php邮件是否失败

Question

I am sending mails from php mail() : and I want to receive a failed message if sending is failed to the destinatio .

$to = '[e-mail]';
    $email_from = "[e-mail]";

    $full_name = 'XXXX';
    $from_mail = $full_name.'<'.$email_from.'>';



    $subject = "testing sender name";
    $message = "";
    $message .= '
            <p><strong>This is only a test mail. Please do not reply.</strong><br />
    ';
    $from = $from_mail;

    //$headers = "" .
    //         "Reply-To:" . $from . "
" .
    //         "X-Mailer: PHP/" . phpversion();

    $headers = "From:" . $from_mail . "
" .
               "Reply-To:" . $from_mail . "
" .
               "X-Mailer: PHP/" . phpversion();


    $headers .= 'MIME-Version: 1.0' . "
";
    $headers .= 'Content-type: text/html; charset=iso-8859-1' . "
";        

    if(!mail($to,$subject,$message,$headers))
    {
        echo 'failed !!';
    }

But although $to mail does no exist,it is not showing failed !!

Answer 1

I think what you want is to check for a real email not only a valid formatted email. So I would suggest you to have a look at this blog