SMTP odmowa połączenia

#include <winsock.h>
#include <stdio.h>
#include <windows.h>

#include "sendmail.hpp"
#include "base64.hpp"
using namespace std;


int mail( std::string to, std::string subject, std::string body )
{
    printf( "YO in send\n" );
    const std::string host = "poczta.interia.pl";
   
    const std::string log = "******@interia.pl";
    const std::string pass = "321321a";
   
    const std::string sender = log;
    const std::string recipient = to;
   
    body = "From: Tajemniczy <" + sender + ">"
    "\nSubject: " + subject +
    "\nTo: <" + to + ">"
    "\n\n" + body;
   
    const int bufsize = 1024;
    char response[ bufsize ];
   
   
    std::string login = base64_encode( reinterpret_cast < const unsigned char *>( log.c_str() ), log.length() );
    std::string password = base64_encode( reinterpret_cast < const unsigned char *>( pass.c_str() ), pass.length() );
   
   
    WORD sockV;
    WSAData wsaData;
    int nret;
   
    sockV = MAKEWORD( 2, 2 );
    WSAStartup( sockV, & wsaData );
    LPHOSTENT hostEntry;
    hostEntry = gethostbyname( host.c_str() );
   
    if( !hostEntry )
    {
        WSACleanup();
        printf( "Return err hostEntry 0\n" );
        return 0;
    }
    SOCKET CData;
    CData = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP );
    if( CData == INVALID_SOCKET )
    {
        WSACleanup();
        printf( "Return err CData 0\n" );
        return 0;
    }
   
    SOCKADDR_IN ServerInfo;
    ServerInfo.sin_family = AF_INET;
    ServerInfo.sin_addr = *(( LPIN_ADDR ) * hostEntry->h_addr_list );
    ServerInfo.sin_port = htons( 25 );
    nret = connect( CData,( LPSOCKADDR ) & ServerInfo, sizeof( struct sockaddr ) );
   
    while( nret == SOCKET_ERROR )
    {
        printf( "Retry connect %s\n", host.c_str() ); //<---------------------------UTYKAM w pętli nie mogę się połączyć przyczyny wydają się nie w kodzie
        nret = connect( CData,( LPSOCKADDR ) & ServerInfo, sizeof( struct sockaddr ) );
    }
   
    recv( CData, response, bufsize, 0 );
    printf( "Odpowiedz: %s\n", response );
    memset( & response, 0, bufsize );
    //pierwsza odpowiedŸ od serwera
   
    //wiadomoœæ powitalna
    send( CData,( "ehlo " + host + "\r\n" ).c_str(),( "ehlo " + host + "\r\n" ).length(), 0 );
    recv( CData, response, bufsize, 0 );
    printf( "Odpowiedz: %s\n", response );
    memset( & response, 0, bufsize );
   
    //autoryzacja - proœba
    send( CData, "AUTH LOGIN\r\n", strlen( "AUTH LOGIN\r\n" ), 0 );
    recv( CData, response, bufsize, 0 );
    printf( "Odpowiedz: %s\n", response );
    memset( & response, 0, bufsize );
   
    //wysy³am login w base64
    send( CData,( login + "\r\n" ).c_str(), login.length() + 2, 0 );
    recv( CData, response, bufsize, 0 );
    printf( "Odpowiedz: %s\n", response );
    memset( & response, 0, bufsize );
   
    //wysy³am password w base64
    send( CData,( password + "\r\n" ).c_str(), password.length() + 2, 0 );
    recv( CData, response, bufsize, 0 );
    printf( "Odpowiedz: %s\n", response );
    memset( & response, 0, bufsize );
   
   
    //wysy³am nadawcê
    send( CData,( "MAIL FROM: <" + log + ">\r\n" ).c_str(),( "MAIL FROM: <" + log + ">\r\n" ).length(), 0 );
    recv( CData, response, bufsize, 0 );
    printf( "Odpowiedz: %s\n", response );
    memset( & response, 0, bufsize );
   
    //wysy³am odbiorce
    send( CData,( "RCPT TO: <" + recipient + ">\r\n" ).c_str(),( "RCPT TO: <" + recipient + ">\r\n" ).length(), 0 );
    recv( CData, response, bufsize, 0 );
    printf( "Odpowiedz: %s\n", response );
    memset( & response, 0, bufsize );
    //mo¿na ten krok powtórzyc, aby by³o ich wiêcej
   
   
    //rozpoczynam wys³anie wiadomosci
    send( CData, "DATA\r\n", 6, 0 );
    recv( CData, response, bufsize, 0 );
    printf( "Odpowiedz: %s\n", response );
    memset( & response, 0, bufsize );
   
    send( CData, body.c_str(), body.length(), 0 );
    send( CData, "\r\n.\r\n", 5, 0 );
    //tekst i zakoñczenie speclalnymi zankami
   
    recv( CData, response, bufsize, 0 );
    printf( "Odpowiedz: %s\n", response );
    memset( & response, 0, bufsize );
   
    // koniec!
    send( CData, "quit\r\n", 6, 0 );
    recv( CData, response, bufsize, 0 );
    printf( "Odpowiedz: %s\n", response );
   
    return 1;
}