code: def receive_inbound_email(request):
      
      # log the request.POST and request.FILES contents
      if log_requests is True:
          _log_request(request)
  
      # HEAD requests are used by some backends to validate the route
      if request.method == 'HEAD':
          return HttpResponse('OK')
  
      try:
          # clean up encodings and extract relevant fields from request.POST
          backend = get_backend_instance()
          emails = backend.parse(request)
  
          # backend.parse can return either an EmailMultiAlternatives
          # or a list of those
          if emails:
              if isinstance(emails, EmailMultiAlternatives):
                  emails = [emails]
              for email in emails:
                  # fire the signal for each email
                  email_received.send(sender=backend.__class__, email=email, request=request)
  
      except AttachmentTooLargeError as ex:
          logger.exception(ex)
          email_received_unacceptable.send(
              sender=backend.__class__,
              email=ex.email,
              request=request,
              exception=ex
          )
      except AuthenticationError as ex:
          logger.exception(ex)
          email_received_unacceptable.send(
              sender=backend.__class__,
              email=None,
              request=request,
              exception=ex
          )
  
      except RequestParseError as ex:
          logger.exception(ex)
          if getattr(settings, 'INBOUND_EMAIL_RESPONSE_200', True):
              # NB even if we have a problem, always use HTTP_STATUS=200, as
              # otherwise the email service will continue polling us with the email.
              # This is the default behaviour.
              status_code = 200
          else:
              status_code = 400
  
          return HttpResponse(
              "Unable to parse inbound email: %s" % ex,
              status=status_code
          )
  
      return HttpResponse("Successfully parsed inbound email.", status=200)
docs: Receives inbound email from SendGrid.
  
      This view receives the email from SendGrid, parses the contents, logs
      the message and the fires the inbound_email signal.