for guest in g:
                # mail = guest['UsrPreferredEmail'] if re.match(
                #     r'^([-_\.\w]*)@([-_\w]*)([\.]{1}[-_\w]{1,})*([\.]{1}[A-z]{2,4})$',
                #     guest['UsrPreferredEmail']
                # ) else None
                # if mail:
                payload = dict({
                    'id': guest['Id'],
                    'first_name': guest['UsrFirstName'] if len(guest['UsrFirstName']) > 0 else 'not_set',
                    'last_name': guest['UsrLastName'] if len(guest['UsrLastName']) > 0 else 'not_set',
                    # 'email': guest['UsrPreferredEmail']
                    # if '@' in guest['UsrPreferredEmail'] else 'not_set@placeholder.com',
                    'title': main if guest['UsrGuestTypeId'] != self.guest_type['main'] else '',
                    'group_id': gid if len(g) > 1 else '',
                    # 'tags': [],
                    'custom_owner': owner if owner else '',
                    'organization': company if company else ''
                })
                if category:
                    category = [category]
                    logger.debug(type(category))
                    logger.debug(category)
                    payload.update({'tags': category})

                logger.debug(payload)
                logger.debug(payload['tags'])
                self.external.create_guest(payload)
                self.bpm.update_guest(guest['Id'], json.dumps({
                    "UsrStageStatusId": self.stage_status['uploaded_all']
                }))
                uploaded += 1