// Инициализируем Windows socket system 
int CSMTP::MailConnect(char *smtp_server)
{

WSADATA wsaData;
WORD wVersionRequested = MAKEWORD(1, 1);
int nResult = WSAStartup(wVersionRequested, &wsaData);
if (nResult != 0)return false;
if (LOBYTE(wsaData.wVersion) != 1|HIBYTE(wsaData.wVersion) != 1)
{
 WSACleanup();
 return false;
}
  SOCKET sc;
	int res;
	short portnum;
/* Create Socket */
if ((sc = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
 return (FAILED_TO_OBTAIN_SOCKET_HANDLE);
		portnum = 25;// SMTP protocol

/* Connect to server */
sock_in.sin_family = AF_INET;
sock_in.sin_port = htons(portnum);
sock_in.sin_addr.S_un.S_addr = GetAddr(smtp_server);
if (connect(sc, (LPSOCKADDR) & sock_in, sizeof(sock_in)))
 return (FAILED_TO_CONNECT);
res = Ack();
return (res);

}

int CSMTP::Ack()
{
static char *buf;
int rlen;
int Index = 0;
int Received = 0;
if (!buf)
 if ((buf = (char *) malloc(1024 * 4)) == NULL)
	return (OUT_OF_MEMORY);
again:
 if ((rlen = recv(sc, buf + Index, ((1024 * 4) - 1) - Received, 0)) < 1)
  return (FAILED_TO_RECEIVE);
 Received += rlen;
 buf[Received] = 0;
 Index += rlen;
 if ((buf[Received - 4] == ' ' && buf[Received - 3] == '-')|   (buf[Received - 2] != '\r')|(buf[Received - 1] != '\n'))
  goto again;/* Incomplete data. Line must be terminated by CRLF		                                        And not contain a space followed by a '-' */
 cout<<"serber response:\r\n"<<buf<<"\r\n";
  if (buf[0] > '3')
      return (SMTP_SERVER_ERROR);
  return (SUCCESS);
}