protected override async Task SendMQ(MQEpep mq)
        {
            string text = mq.Content == null ? "" : Encoding.UTF8.GetString(mq.Content);

            if (string.IsNullOrEmpty(text))
            {
                using (var scope = new TransactionScope())
                {
                    text       = GenerateXml(mq);
                    mq.Content = Encoding.UTF8.GetBytes(text);
                    repo.Update(mq);
                    repo.SaveChanges();
                    scope.Complete();
                }
            }

            var response = await requester.PostAsyncTextXml(uploadUrl.AbsoluteUri, text);

            if (response.IsSuccessStatusCode)
            {
                var content = await response.Content.ReadAsStringAsync();

                XElement result = null;
                if (!string.IsNullOrEmpty(content))
                {
                    XDocument message = XDocument.Parse(content);
                    result = message?.Element("response")?.Element("success");
                }
                else
                {
                    content = "Получен е празен резултат от ИСПН";
                }
                if (result != null)
                {
                    mq.IntegrationStateId = IntegrationStates.TransferOK;
                    mq.DateTransfered     = DateTime.Now;
                    mq.Content            = Encoding.UTF8.GetBytes(text);
                    repo.Update(mq);
                    repo.SaveChanges();
                    if (caseMq != null)
                    {
                        var mqHash = caseMq.FirstOrDefault(x => x.Id == mq.Id);
                        mqHash.Content            = mq.Content;
                        mqHash.IntegrationStateId = mq.IntegrationStateId;
                    }
                    string           fileName = $"Ispn_{mq.Id}_{ DateTime.Today:dd.MM.yyyy}.xml";
                    CdnUploadRequest request  = new CdnUploadRequest()
                    {
                        ContentType       = System.Net.Mime.MediaTypeNames.Text.Html,
                        FileContentBase64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(content)),
                        FileName          = fileName,
                        SourceId          = mq.ParentSourceId.ToString(),
                        SourceType        = SourceTypeSelectVM.Integration_ISPN,
                        Title             = $"Отговор към { DateTime.Today:dd.MM.yyyy}"
                    };

                    if (!(await cdnService.MongoCdn_AppendUpdate(request)))
                    {
                        logger.LogError("Error in SaveContent ISPN mqId {mq.Id}!", mq.Id.ToString());
                    }
                }
                else
                {
                    SetErrorToMQ(mq, IntegrationStates.DataContentError, content);
                }
            }
            else
            {
                throw new Exception($"Error {response.StatusCode} : {response.ReasonPhrase}  sending message ISPN!");
            }
        }