private string GetReceivedAddress(EmailQueue emailQueue)
        {
            try
            {
                if (emailQueue.IsInnerTransaction == false)
                {
                    return(GetTransaction(emailQueue).ToAddress);
                }
                using (var internalTransactionsRepository = new InternalTransactionsRepository(_connectionDb))
                {
                    var transaction = internalTransactionsRepository.FindById(emailQueue.TransactionId);

                    using (var userRepository = new UserRepository(_connectionDb))
                    {
                        var user = userRepository.FindById(transaction.ReceiverUserId);
                        return(user.mem_id);
                    }
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                throw;
            }
        }
        private string GetSender(EmailQueue emailQueue)
        {
            try
            {
                using (var internalTransactionsRepository = new InternalTransactionsRepository(_connectionDb))
                {
                    using (var userRepository = new UserRepository(_connectionDb))
                    {
                        var transaction = internalTransactionsRepository.FindById(emailQueue.TransactionId);

                        var user = userRepository.FindById(transaction.SenderUserId);
                        return(user.mem_id);
                    }
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                throw;
            }
        }