public void SendMail(string senderName, string receivers, string subject, string body)
{
var message = new NewMailMessage();
message.SenderName = senderName;
message.Time = DateTime.Now;
message.DestinationList = receivers;
message.Subject = subject;
message.Body = body;
message.Normalize();
ConnectionManager.Instance.Send("newMail");
ConnectionManager.Instance.Send(message.Serialize());
ConnectionManager.Instance.Close();
}