从PHP代码

Question

上述错误发生在我们从php代码发送电子邮件时，我的代码是

<?php 
//if(isset($_POST['submit'])){
    $to = "abc@gmail.com"; // this is your Email address
    $from = $_POST['email']; // this is the sender's Email address
   // $first_name = $_POST['first_name'];
    //$last_name = $_POST['last_name'];
    $subject = $_POST['subject'];
    $subject2 = "Copy of your form submission";
    $message = $first_name . " " . $last_name . " wrote the following:" . "\n\n" . $_POST['message'];
    $message2 = "Here is a copy of your message " . $first_name . "\n\n" . $_POST['message'];

    $headers = "From:" . $from;
    $headers2 = "From:" . $to;
    mail($to,$subject,$message,$headers);
    mail($from,$subject2,$message2,$headers2); // sends a copy of the message to the sender
    echo "Mail Sent. Thank you " . $first_name . ", we will contact you shortly.";
    // You can also use header('Location: thank_you.php'); to redirect to another page.
    // You cannot use header and echo together. It's one or the other.
    //}
?>

来自this stackoverflow link

错误如下：

  

警告：mail（）：SMTP服务器响应：550没有   用户在D：\ InetPub \ vhosts \ aaa.com \ httpdocs \ sendform.php上线   15

     

警告：mail（）：SMTP服务器响应：550没有   用户在D：\ InetPub \ vhosts \ aaa.com \ httpdocs \ sendform.php上线   16

Answer 1

Gmail SMTP服务器返回错误，并告诉您脚本发送邮件的电子邮件地址不存在于Gmail服务器上。

这不是PHP错误。