跪求INDY10中idpop3和IdSSLIOHandlerSocketOpenSSL使用SSL连接Gmail用法,该怎么解决

本文探讨了使用INDY10中的idpop3和IdSSLIOHandlerSocketOpenSSL组件通过SSL连接到Gmail的问题。提供了Delphi语言的示例代码，并解决了连接总是出现ConnectionClosedGracefully错误的问题。

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跪求INDY10中idpop3和IdSSLIOHandlerSocketOpenSSL使用SSL连接Gmail用法
郁闷3天了, 就是不知道咋弄,网上该搜的都搜索了.

C/C++ code

 // 指定新邮件的地址等信息
    IdSSLIOHandlerSocketOpenSSL1->SSLOptions->Method = sslvTLSv1;
    //IdSSLIOHandlerSocketOpenSSL1->Destination = "pop.gmail.com:995";
   // IdSSLIOHandlerSocketOpenSSL1->SSLOptions->Mode = sslmClient;
    //IdSSLIOHandlerSocketOpenSSL1->SSLOptions->VerifyDepth = 0;
   //IdSSLIOHandlerSocketOpenSSL1->RecvBufferSize = 1024;
    IdSSLIOHandlerSocketOpenSSL1->Host = "pop.gmail.com";
   // IdSSLIOHandlerSocketOpenSSL1->Port = 995;


    POP->Host = "pop.gmail.com";
    POP->Port = "995"
    POP->Username = "username";
    POP->Password = "password";
    POP->UseTLS = utNoTLSSupport;
    POP->IOHandler = IdSSLIOHandlerSocketOpenSSL1;
    POP->ConnectTimeout = 10000;
    try
    {
        POP->Connect();
    }
    catch( EIdException &e )
    {
         Memo1->Lines->Add("连接错误: " + e.Message);
    }

结果是:
连接状态:Connected.
连接中...
连接错误: Connection Closed Gracefully.

每次都是Connection Closed Gracefully. 怎样设置属性啊??是否需要SSL证书才能连接?只有98分,全送了.

------解决方案--------------------

------解决方案--------------------
Indy10的具体版本号是多少?
------解决方案--------------------
我是用Delphi测试的:

Delphi(Pascal) code

var
  popMsg: TIdPOP3;
  sslConn: TIdSSLIOHandlerSocketOpenSSL;
begin
  sslConn := TIdSSLIOHandlerSocketOpenSSL.Create(Nil);
  try
    popMsg := TIdPOP3.Create(Nil);
    try
      popMsg.IOHandler := sslConn;
      popMsg.Host := 'pop.gmail.com';
      popMsg.Port := 995;
      popMsg.Username := 'MyGMailUserName@gmail.com';
      popMsg.Password := '********';
      popMsg.UseTLS := utUseImplicitTLS;
      popMsg.Connect;
      ShowMessage('MessageCount:'+IntToStr(popMsg.CheckMessages));
    finally
      popMsg.Free;
    end;
  finally
    sslConn.Free;
  end;
end;