public async Task <IActionResult> DeleteEmailMessage(int emailMessageId)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }
            try {
                await _emailMessageService.DeleteUserMessageAsync(emailMessageId, UserId);

                return(NoContent());
            } catch (Exception e) {
                return(BadRequest(e.Message));
            }
        }