private Task SendFromServer(MailMessage mailMessage, bool reuse, bool useServerSmtp)
        {
     return Task.Factory.StartNew(() =>
                {
                    var smtp = new SmtpClient();
                       smtp.Send(mailMessage);
                    }
                    catch (Exception ex)
                    {
                        Logger.Error(ex.InnerException ?? ex);
                    }
                    finally
                    {
                        if(!reuse)
                            mailMessage.Dispose();
                    }
                });
            }
}