PayPal IPN Listener가 작동하지 않습니다.

Question

그래서 IPN 설명서를 읽었으며 많은 예제를 읽었습니다. 몇 가지 다른 솔루션을 시도해 보았는데 작동하지 않으면 I've simply copy and pasted exactly what is documented on the PayPal IPN page. 이와 같이 여전히 작동하지 않습니다. 내 IPN 기록에 따르면 메시지가 계속 재전송됩니다. 아래 코드 - 누락 된 항목은 무엇입니까?

protected void Page_Load(object sender, EventArgs e) 
    { 
     const string postUrl = "https://www.paypal.com/cgi-bin/webscr"; 
     var req = (HttpWebRequest)WebRequest.Create(postUrl); 

     //Set values for the request back 
     req.Method = "POST"; 
     req.ContentType = "application/x-www-form-urlencoded"; 
     var param = Request.BinaryRead(HttpContext.Current.Request.ContentLength); 
     var strRequest = Encoding.ASCII.GetString(param); 
     var ipnPost = strRequest; 
     strRequest += "&cmd=_notify-validate"; 
     req.ContentLength = strRequest.Length; 

     //for proxy 
     //WebProxy proxy = new WebProxy(new Uri("http://url:port#")); 
     //req.Proxy = proxy; 

     //Send the request to PayPal and get the response 
     var streamOut = new StreamWriter(req.GetRequestStream(), Encoding.ASCII); 
     streamOut.Write(strRequest); 
     streamOut.Close(); 

     // ReSharper disable AssignNullToNotNullAttribute 
     var streamIn = new StreamReader(req.GetResponse().GetResponseStream()); 
     // ReSharper restore AssignNullToNotNullAttribute 
     var strResponse = streamIn.ReadToEnd(); 
     streamIn.Close(); 

     // logging ipn messages... be sure that you give write 
     // permission to process executing this code 
     // 

     if (strResponse == "VERIFIED") 
     { 
      //check the payment_status is Completed 
      //check that txn_id has not been previously processed 
      //check that receiver_email is your Primary PayPal email 
      //check that payment_amount/payment_currency are correct 
      //process payment 
      var mailer = new Emailer(); 
      mailer.SendMail("from@domain.com", "to@domain.com", "Thank you!", 
          "Thank you for your sponsorship. Good luck on your results!<br /><br />" + ipnPost); 
     } 
     else if (strResponse == "INVALID") 
     { 
      //log for manual investigation 
     } 
    } 

Answer 1

내 이메일 발신자에게 오류가 발생했습니다. 보내는 주소가 내 AWS 계정에서 확인되지 않았습니다.