don't check for validation status if validation is disabled

newsletter/management/commands/update_newsletter_subscribers.py

-from optparse import make_option
-
+from django.conf import settings
 from django.core.management.base import BaseCommand, CommandError
 
 from ...models import Subscriber
@@ -9,7 +8,11 @@ class Command(BaseCommand):
     def handle(self, verbosity, **kwargs):
         self.verbose = verbosity > 1
 
-        for subscriber in Subscriber.objects.filter(is_validated=True).exclude(is_registered=True):
+        qs = Subscriber.objects.exclude(is_registered=True)
+        if getattr(settings, 'NEWSLETTER_SEND_CONFIRMATION', True):
+            qs = qs.filter(is_validated=True)
+
+        for subscriber in qs:
             if self.verbose:
                 print('subscribing', subscriber.email)
             subscriber.subscribe()