How Do I Make My Vb.Net Program Send Email From Php

Dim Names As String = txtfrom.Text
        Dim Email As String = "E@mail.com"
        Dim Phone As String = "8979876785"
        Dim Address As String = "Location"
        Dim postData = "&Names=" & Names & "&Email=" & Email & "&Phone=" & Phone & "&Address=" & Address
        Dim request As WebRequest = WebRequest.Create("http://localhost/testserver/sendmail.php")
        request.Method = "post"
        Dim byteArray As Byte() = Encoding.UTF8.GetBytes(postData)
        request.ContentType = "application/x-www-form-urlencoded"
        request.ContentLength = byteArray.Length
        Dim dataStream As Stream = request.GetRequestStream()
        dataStream.Write(byteArray, 0, byteArray.Length)
        dataStream.Close()
        Dim response As WebResponse = request.GetResponse()
        dataStream = response.GetResponseStream()
        Dim reader As New StreamReader(dataStream)
        Dim responseFromServer As String = reader.ReadToEnd()
        reader.Close()
        dataStream.Close()
        response.Close()
        MsgBox(responseFromServer)

<?php

$htmlbody = " Your Mail Contant Here.... You can use html tags here...";



$to = "name@domain.com"; //Recipient Email Address

$subject = "Test email with attachment"; //Email Subject

$headers = "From: name@domain.com\r\nReply-To: name@domain.com";

$random_hash = md5(date('r', time()));

$headers .= "\r\nContent-Type: multipart/mixed; boundary=\"PHP-mixed-".$random_hash."\"";

$attachment = chunk_split(base64_encode(file_get_contents('logo.png'))); // Set your file path here

//define the body of the message.

$message = "--PHP-mixed-$random_hash\r\n"."Content-Type: multipart/alternative; boundary=\"PHP-alt-$random_hash\"\r\n\r\n";
$message .= "--PHP-alt-$random_hash\r\n"."Content-Type: text/plain; charset=\"iso-8859-1\"\r\n"."Content-Transfer-Encoding: 7bit\r\n\r\n";

//Insert the html message.
$message .= $htmlbody;
$message .="\r\n\r\n--PHP-alt-$random_hash--\r\n\r\n";

//include attachment
$message .= "--PHP-mixed-$random_hash\r\n"."Content-Type: application/zip; name=\"logo.png\"\r\n"."Content-Transfer-Encoding: base64\r\n"."Content-Disposition: attachment\r\n\r\n";
$message .= $attachment;
$message .= "/r/n--PHP-mixed-$random_hash--";

//send the email
$mail = mail( $to, $subject , $message, $headers );

echo $mail ? "Mail sent" : "Mail failed";


?>