电子邮件地址未以正确格式显示，如myname@mycompany.com - PHP

Question

我正在尝试编写PHP脚本代码，我正在尝试将邮件发送到指定的电子邮件地址，我从Java的POST变量中收集这些邮件。然而，我起初能够发送邮件，但在我曾经收到的电子邮件中收到如下警告：此邮件可能尚未发送：XxX@gmail.com了解详情报告网络钓鱼。然后我才知道我需要有一个与我的域名相关联的电子邮件，在收到我的邮件之后我的邮件没有发送此警告，但我发送的电子邮件地址既没有显示也没有像mydomainname @ rsb29那样。 rhostbh.com。我怎样才能解决这个问题？ 下面是我的PHP脚本：

        $email = $_POST["email"];

        $pass = "0";

        $pass = mysql_query("SELECT password FROM `seller` WHERE email = '$email'");

        $myrow = mysql_fetch_array($pass);

        if ($pass){

            $to = $email;
            $subject = "no reply, CarList Password Request";
            $message = "Hello! \n This is in response to your request for your password. \n\n\rE-mail Id: ".$email."\n\rPassword: " .$myrow[password] . "\n\n\n\r If you've received this mail in error, it's likely that another user entered your email address by mistake while trying to reset a password. If you didn't initiate the request, you don't need to take any further action and can safely disregard this email." ;

            $from = "myapp@mydomainname.com"; // changed for security reason
            $headers = "From:" . $from;
            mail($to,$subject,$message,$headers);

            echo $myrow[password];


    }else{
            echo 'Fail';
    }