无法使用php中的mail（）函数发送邮件

Question

I am trying to get contact form details through mail. But failed to do so using mail() function. here's my code.

if(isset($_POST['rqsubmit'])) {
    $name = htmlspecialchars($_POST['Field1']);
    $email = trim($_POST['Field2']);
    $phone = trim($_POST['Field3']);
    $msg = strip_tags($_POST['Field4']);
    //echo $name." ".$phone." ".$email." ".$msg;
    $to = 'gowtham@gmail.com';
    //$from = $email;
    $subject = "Software Development";
    $message = "Name:".$name."<br/>Phone".$phone."<br/>Message:".$msg;
    //echo $message;
    $semi_rand = md5(time()); $mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";   
//echo $message;    
$headers = "From: xyz@gmail.com". "\r\n".
            'Reply-To: xyz@gmail.com' . "\r\n" .
            'X-Mailer: PHP/' . phpversion();    
$headers .= "\nMIME-Version: 1.0\n" .
"Content-Type: multipart/mixed;\n" .
" boundary=\"{$mime_boundary}\"";       
    $ok = @mail($to, $subject, wordwrap($message, 70, "\r\n"), $headers);
    if ($ok) {
        echo "<p>Thank you for contacting us!  !!</p>";
    } else {
        echo "<p>Mail could not be sent. Sorry!</p>";
    } 
} else { 
    echo "mail not sent";  
}

I would like to know where i am going wrong. Any help would b highly appreciated. thank you!

Answer 1

Add: 'X-Mailer: PHP/' . phpversion(); to: $headers

Answer 2

Perhaps it's being rejected due to the lack of a sender email address.

Put your own email address in the From: header, and add a Reply-To: header containing the sender's address.

Can I just point out that you need to check the form data thoroughly before putting it into an email. For example, I could quite easily send emails all over the place by setting Field2 to something like blah@example.com\\nBcc: spam1@spam.com, spam2@spam.com, ... .

EDIT: Sorry, my mistake — you did add a From header. However, it's quite likely that your mail server is configured to reject emails where the sender address is not on its list of approved senders. That's why you need to put your own address in the From: header, and the sender's address in the Reply-To: header.

EDIT 2: Also, what on earth are you doing with $mime_boundary ? As far as I can tell, you're not sending a valid MIME message.