username@facebook.com'a mail. (.NET)

        static string smtpServer = "smtp.gmail.com";
        static string smtpKulAdi = "mailim@gmail.com";
        static string smtpSifre = "sifrem";
        static string adres = "MuhammedF@facebook.com";
        static string gonderenAdisabit = "İletişim Formu";
        static int smtpPort = 587;
        static bool smtpEnableSSL = true;

public static void MailGonder(string gonderenAdi, string GonderilenAdres, string Konu, string MesajMetni)
        {
SmtpClient sc = new SmtpClient(smtpServer);
            sc.Credentials = new NetworkCredential(smtpKulAdi, smtpSifre);
            sc.EnableSsl = smtpEnableSSL;
            sc.Port = smtpPort;
            MailMessage mail = new MailMessage();

            mail.From = new MailAddress(smtpKulAdi, gonderenAdi);
            mail.To.Add(adres);

            mail.Subject = Konu;
            mail.ReplyTo = new MailAddress(GonderilenAdres);
            mail.IsBodyHtml = true;
            mail.Body = MesajMetni;
            sc.Send(mail);

        }