docs: def validate_email(self, value):
          """ ensure email is in the database """
          if EMAIL_CONFIRMATION:
              queryset = EmailAddress.objects.filter(email__iexact=value, verified=True)
          else:
              queryset = User.objects.get(email__iexact=value, is_active=True).count() == 0
          if queryset.count() < 1:
              raise serializers.ValidationError(_("Email address not found"))
          return queryset.first().email