diff --git a/lib/Cron/Workers/Scheduler.php b/lib/Cron/Workers/Scheduler.php
index 8fc7389094..bf4a765bce 100644
--- a/lib/Cron/Workers/Scheduler.php
+++ b/lib/Cron/Workers/Scheduler.php
@@ -31,13 +31,13 @@ class Scheduler {
         ->findOne($queue->newsletter_id);
       if(!$newsletter || $newsletter->deleted_at !== null) {
         $queue->delete();
-      } elseif($newsletter->status !== 'active') {
+      } elseif($newsletter->status !== Newsletter::STATUS_ACTIVE && $newsletter->status !== Newsletter::STATUS_SCHEDULED) {
         continue;
-      } elseif($newsletter->type === 'welcome') {
+      } elseif($newsletter->type === Newsletter::TYPE_WELCOME) {
         $this->processWelcomeNewsletter($newsletter, $queue);
-      } elseif($newsletter->type === 'notification') {
+      } elseif($newsletter->type === Newsletter::TYPE_NOTIFICATION) {
         $this->processPostNotificationNewsletter($newsletter, $queue);
-      } elseif($newsletter->type === 'standard') {
+      } elseif($newsletter->type === Newsletter::TYPE_STANDARD) {
         $this->processScheduledStandardNewsletter($newsletter, $queue);
       }
       CronHelper::enforceExecutionLimit($this->timer);
@@ -99,6 +99,8 @@ class Scheduler {
     $queue->count_total = $queue->count_to_process = count($subscribers);
     $queue->status = null;
     $queue->save();
+    // update notification status
+    $notification_history->setStatus(Newsletter::STATUS_SENDING);
     return true;
   }
 
@@ -118,6 +120,8 @@ class Scheduler {
     $queue->count_total = $queue->count_to_process = count($subscribers);
     $queue->status = null;
     $queue->save();
+    // update newsletter status
+    $newsletter->setStatus(Newsletter::STATUS_SENDING);
     return true;
   }
 
@@ -134,7 +138,7 @@ class Scheduler {
       return false;
     }
     // check if subscriber is confirmed (subscribed)
-    if($subscriber->status !== 'subscribed') {
+    if($subscriber->status !== Subscriber::STATUS_SUBSCRIBED) {
       // reschedule delivery in 5 minutes
       $scheduled_at = Carbon::createFromTimestamp(current_time('timestamp'));
       $queue->scheduled_at = $scheduled_at->addMinutes(
@@ -187,7 +191,7 @@ class Scheduler {
   }
 
   static function getScheduledQueues() {
-    return SendingQueue::where('status', 'scheduled')
+    return SendingQueue::where('status', SendingQueue::STATUS_SCHEDULED)
       ->whereLte('scheduled_at', Carbon::createFromTimestamp(current_time('timestamp')))
       ->whereNull('type')
       ->findMany();
diff --git a/tests/unit/Cron/Workers/SchedulerTest.php b/tests/unit/Cron/Workers/SchedulerTest.php
index a6b284640e..09bedbb0fa 100644
--- a/tests/unit/Cron/Workers/SchedulerTest.php
+++ b/tests/unit/Cron/Workers/SchedulerTest.php
@@ -367,6 +367,9 @@ class SchedulerTest extends MailPoetTest {
     expect($updated_queue_subscribers['to_process'])->equals(array($subscriber->id));
     // set queue's status to null
     expect($updated_queue->status)->null();
+    // set newsletter's status to sending
+    $updated_newsletter = Newsletter::findOne($newsletter->id);
+    expect($updated_newsletter->status)->equals(Newsletter::STATUS_SENDING);
   }
 
   function testItFailsToProcessPostNotificationNewsletterWhenSegmentsDontExist() {
@@ -422,6 +425,10 @@ class SchedulerTest extends MailPoetTest {
     $updated_queue_subscribers = $updated_queue->getSubscribers();
     expect($updated_queue_subscribers['to_process'])->equals(array($subscriber->id));
     expect($updated_queue->newsletter_id)->equals($notification_history->id);
+    // set notification history's status to sending
+    $updated_notification_history = Newsletter::where('parent_id', $newsletter->id)
+      ->findOne();
+    expect($updated_notification_history->status)->equals(Newsletter::STATUS_SENDING);
   }
 
   function testItFailsToProcessWhenScheduledQueuesNotFound() {
@@ -513,6 +520,35 @@ class SchedulerTest extends MailPoetTest {
       'processScheduledStandardNewsletter' => Stub::never()
     ), $this);
     // scheduled job is not processed
+    $scheduler->timer = microtime(true);
+    $scheduler->process();
+  }
+
+  function testItProcessesScheduledJobsWhenNewsletterIsActive() {
+    $newsletter = $this->_createNewsletter(Newsletter::TYPE_STANDARD, Newsletter::STATUS_ACTIVE);
+    $queue = $this->_createQueue($newsletter->id);
+    $queue->scheduled_at = Carbon::createFromTimestamp(current_time('timestamp'));
+    $queue->save();
+
+    $scheduler = Stub::make(new Scheduler(), array(
+      'processScheduledStandardNewsletter' => Stub::once()
+    ), $this);
+    // scheduled job is processed
+    $scheduler->timer = microtime(true);
+    $scheduler->process();
+  }
+
+  function testItProcessesScheduledJobsWhenNewsletterIsScheduled() {
+    $newsletter = $this->_createNewsletter(Newsletter::TYPE_STANDARD, Newsletter::STATUS_SCHEDULED);
+    $queue = $this->_createQueue($newsletter->id);
+    $queue->scheduled_at = Carbon::createFromTimestamp(current_time('timestamp'));
+    $queue->save();
+
+    $scheduler = Stub::make(new Scheduler(), array(
+      'processScheduledStandardNewsletter' => Stub::once()
+    ), $this);
+    // scheduled job is processed
+    $scheduler->timer = microtime(true);
     $scheduler->process();
   }
 
@@ -535,7 +571,6 @@ class SchedulerTest extends MailPoetTest {
     return $subscriber_segment;
   }
 
-
   function _createSegment() {
     $segment = Segment::create();
     $segment->name = 'test';