diff --git a/app/models/job.rb b/app/models/job.rb
index 45556f116fad..10a8778a76ea 100644
--- a/app/models/job.rb
+++ b/app/models/job.rb
@@ -24,8 +24,9 @@ class Job < ApplicationModel
 
   def self.run
     start_at = Time.zone.now
-    jobs = Job.where(active: true, running: false)
+    jobs = Job.where(active: true)
     jobs.each do |job|
+      next if !job.executable?
       job.run(false, start_at)
     end
     true
@@ -75,6 +76,7 @@ def run(force = false, start_at = Time.zone.now)
 
     self.processed = ticket_count || 0
     self.running = true
+    self.last_run_at = Time.zone.now
     save!
 
     tickets&.each do |ticket|
@@ -94,6 +96,9 @@ def executable?(start_at = Time.zone.now)
     # only execute jobs, older then 1 min, to give admin posibility to change
     return false if updated_at > Time.zone.now - 1.minute
 
+    # check if job got stuck
+    return false if running == true && last_run_at && Time.zone.now - 1.day < last_run_at
+
     # check if jobs need to be executed
     # ignore if job was running within last 10 min.
     return false if last_run_at && last_run_at > start_at - 10.minutes
diff --git a/test/unit/job_test.rb b/test/unit/job_test.rb
index 876b3726de55..1d2470d7b281 100644
--- a/test/unit/job_test.rb
+++ b/test/unit/job_test.rb
@@ -934,4 +934,136 @@ class JobTest < ActiveSupport::TestCase
 
   end
 
+  test 'delete spam on time' do
+
+    # create ticket
+    group1 = Group.lookup(name: 'Users')
+    group2 = Group.create_or_update(
+      name: 'JobTest2',
+      updated_by_id: 1,
+      created_by_id: 1,
+    )
+    ticket1 = Ticket.create!(
+      title: 'job test 1',
+      group: group1,
+      customer_id: 2,
+      state: Ticket::State.lookup(name: 'closed'),
+      priority: Ticket::Priority.lookup(name: '2 normal'),
+      created_by_id: 1,
+      updated_by_id: 1,
+    )
+    ticket2 = Ticket.create!(
+      title: 'job test 2',
+      group: group2,
+      customer_id: 2,
+      state: Ticket::State.lookup(name: 'closed'),
+      priority: Ticket::Priority.lookup(name: '2 normal'),
+      created_by_id: 1,
+      updated_by_id: 1,
+    )
+    travel_to Time.zone.parse('2018-08-13T23:01:01Z')
+    job1 = Job.create_or_update(
+      name: 'Spam entfernen',
+      timeplan: {
+        days: {
+          Mon: true,
+          Tue: false,
+          Wed: true,
+          Thu: false,
+          Fri: true,
+          Sat: false,
+          Sun: false,
+        },
+        hours: {
+          '0' => false,
+          '1' => false,
+          '2' => false,
+          '3' => false,
+          '4' => false,
+          '5' => false,
+          '6' => false,
+          '7' => false,
+          '8' => false,
+          '9' => false,
+          '10' => false,
+          '11' => false,
+          '12' => false,
+          '13' => false,
+          '14' => false,
+          '15' => false,
+          '16' => false,
+          '17' => false,
+          '18' => false,
+          '19' => false,
+          '20' => false,
+          '21' => false,
+          '22' => false,
+          '23' => true,
+        },
+        minutes: {
+          '0' => true,
+          '10' => false,
+          '20' => false,
+          '30' => false,
+          '40' => false,
+          '50' => false,
+        }
+      },
+      condition: {
+        'ticket.group_id' => { 'operator' => 'is', 'value' => group1.id },
+        'ticket.state_id' => { 'operator' => 'is', 'value' => Ticket::State.find_by(name: 'closed').id }
+      },
+      perform: {
+        'ticket.action' => { 'value' => 'delete' }
+      },
+      disable_notification: true,
+      last_run_at: nil,
+      next_run_at: '2018-08-13 23:00:00',
+      running: false,
+      processed: 19_393,
+      matching: 19_428,
+      updated_at: Time.zone.now - 15.minutes,
+      active: true,
+      updated_by_id: 1,
+      created_by_id: 1,
+    )
+
+    assert(job1.executable?)
+    assert(job1.in_timeplan?)
+    Job.run
+
+    assert_not(Ticket.find_by(id: ticket1.id))
+    assert(Ticket.find_by(id: ticket2.id))
+
+    ticket1 = Ticket.create!(
+      title: 'job test 1',
+      group: group1,
+      customer_id: 2,
+      state: Ticket::State.lookup(name: 'closed'),
+      priority: Ticket::Priority.lookup(name: '2 normal'),
+      created_by_id: 1,
+      updated_by_id: 1,
+    )
+
+    travel_to Time.zone.parse('2018-08-15T23:01:01Z')
+
+    job1.running = true
+    job1.save!
+
+    assert_not(job1.executable?)
+    assert(job1.in_timeplan?)
+    Job.run
+
+    assert(Ticket.find_by(id: ticket1.id))
+    assert(Ticket.find_by(id: ticket2.id))
+
+    travel_to Time.zone.parse('2018-08-17T23:08:01Z')
+    assert(job1.executable?)
+    assert(job1.in_timeplan?)
+    Job.run
+
+    assert_not(Ticket.find_by(id: ticket1.id))
+    assert(Ticket.find_by(id: ticket2.id))
+
+  end
 end