private void NewEmail(object notUsed)
        {
            NewEmailUseCase newEmailUseCase = ApplicationModel.CreateObjectInScopedRegionManager<NewEmailUseCase>();
            newEmailUseCase.Message = new EmailMessage();
            ApplicationModel.ShowUseCase(newEmailUseCase);

        }
        private void ReplyToEmail(object notUsed)
        {
            EmailMessage currentEmail = this.emailViewModel.SelectedEmail.Value;

            if (currentEmail == null)
                return;
            NewEmailUseCase newEmailUseCase = ApplicationModel.CreateObjectInScopedRegionManager<NewEmailUseCase>();
            newEmailUseCase.Message = new EmailMessage()
                                          {
                                              Body = "------------------------------------------------\r\n" + currentEmail.Body,
                                              From = currentEmail.To,
                                              To = currentEmail.From, 
                                              Subject = "Re: " + currentEmail.Subject
                                          };
            ApplicationModel.ShowUseCase(newEmailUseCase);

        }