diff --git a/zerver/lib/digest.py b/zerver/lib/digest.py
index 269af1fb3c..135edcfa5d 100644
--- a/zerver/lib/digest.py
+++ b/zerver/lib/digest.py
@@ -211,4 +211,4 @@ def handle_digest_email(user_profile_id, cutoff):
         logger.info("Sending digest email for %s" % (user_profile.email,))
         # Send now, as a ScheduledJob
         send_future_email('zerver/emails/digest', display_email(user_profile),
-                          context=template_payload, tags=["digest-emails"])
+                          context=template_payload)
diff --git a/zerver/lib/notifications.py b/zerver/lib/notifications.py
index ec80041dc0..35d17cbfb5 100644
--- a/zerver/lib/notifications.py
+++ b/zerver/lib/notifications.py
@@ -398,12 +398,10 @@ def enqueue_welcome_emails(email, name):
     })
     send_future_email(
         "zerver/emails/followup_day1", '%s <%s>' % (name, email),
-        from_email=from_email, context=context, delay=datetime.timedelta(hours=1),
-        tags=["followup-emails"])
+        from_email=from_email, context=context, delay=datetime.timedelta(hours=1))
     send_future_email(
         "zerver/emails/followup_day2", '%s <%s>' % (name, email),
-        from_email=from_email, context=context, delay=datetime.timedelta(days=1),
-        tags=["followup-emails"])
+        from_email=from_email, context=context, delay=datetime.timedelta(days=1))
 
 def convert_html_to_markdown(html):
     # type: (Text) -> Text
diff --git a/zerver/lib/send_email.py b/zerver/lib/send_email.py
index 7324309820..30784e4725 100644
--- a/zerver/lib/send_email.py
+++ b/zerver/lib/send_email.py
@@ -34,8 +34,8 @@ def send_email_to_user(template_prefix, user, from_email=None, context={}):
     return send_email(template_prefix, display_email(user), from_email=from_email, context=context)
 
 def send_future_email(template_prefix, to_email, from_email=None, context={},
-                      delay=datetime.timedelta(0), tags=[]):
-    # type: (str, Text, Optional[Text], Dict[str, Any], datetime.timedelta, Iterable[Text]) -> None
+                      delay=datetime.timedelta(0)):
+    # type: (str, Text, Optional[Text], Dict[str, Any], datetime.timedelta) -> None
     email_fields = {'template_prefix': template_prefix, 'to_email': to_email, 'from_email': from_email,
                     'context': context}
     ScheduledJob.objects.create(type=ScheduledJob.EMAIL, filter_string=parseaddr(to_email)[1],
diff --git a/zerver/tests/test_signup.py b/zerver/tests/test_signup.py
index 0ea5d90a39..a221461bfb 100644
--- a/zerver/tests/test_signup.py
+++ b/zerver/tests/test_signup.py
@@ -739,8 +739,7 @@ so we didn't send them an invitation. We did send invitations to everyone else!"
         with self.settings(EMAIL_BACKEND='django.core.mail.backends.console.EmailBackend'):
             send_future_email(
                 "zerver/emails/invitation_reminder", data["email"],
-                from_email=settings.ZULIP_ADMINISTRATOR,
-                context=context, tags=["invitation-reminders"])
+                from_email=settings.ZULIP_ADMINISTRATOR, context=context)
         email_jobs_to_deliver = ScheduledJob.objects.filter(
             type=ScheduledJob.EMAIL,
             scheduled_timestamp__lte=timezone_now())
@@ -855,8 +854,7 @@ class EmailUnsubscribeTests(ZulipTestCase):
         # Enqueue a fake digest email.
         context = {'name': '', 'realm_uri': '', 'unread_pms': [], 'hot_conversations': [],
                    'new_users': [], 'new_streams': {'plain': []}, 'unsubscribe_link': ''}
-        send_future_email('zerver/emails/digest', display_email(user_profile),
-                          context=context, tags=["digest-emails"])
+        send_future_email('zerver/emails/digest', display_email(user_profile), context=context)
 
         self.assertEqual(1, len(ScheduledJob.objects.filter(
             type=ScheduledJob.EMAIL, filter_string__iexact=email)))
diff --git a/zerver/worker/queue_processors.py b/zerver/worker/queue_processors.py
index 94e7020b91..9b992d0bc0 100644
--- a/zerver/worker/queue_processors.py
+++ b/zerver/worker/queue_processors.py
@@ -171,8 +171,7 @@ class ConfirmationEmailWorker(QueueProcessingWorker):
             data["email"],
             from_email=settings.ZULIP_ADMINISTRATOR,
             context=context,
-            delay=datetime.timedelta(days=2),
-            tags=["invitation-reminders"])
+            delay=datetime.timedelta(days=2))
 
 @assign_queue('user_activity')
 class UserActivityWorker(QueueProcessingWorker):