diff --git a/app/Factory/InvoiceInvitationFactory.php b/app/Factory/InvoiceInvitationFactory.php
new file mode 100644
index 000000000000..3156cc451ee5
--- /dev/null
+++ b/app/Factory/InvoiceInvitationFactory.php
@@ -0,0 +1,41 @@
+ <?php
+/**
+ * Invoice Ninja (https://invoiceninja.com)
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2019. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://opensource.org/licenses/AAL
+ */
+
+namespace App\Factory;
+
+use App\Models\InvoiceInvitation;
+
+class InvoiceInvitationFactory
+{
+
+      public static function create(int $company_id, int $user_id) :InvoiceInvitation
+      {
+            $ii = new InvoiceInvitation;
+            $ii->company_id = $company_id;
+            $ii->user_id = $user_id;
+            $ii->client_contact_id = null;
+            $ii->invoice_id = null;
+            $ii->invitation_key = str_random(config('ninja.key_length'));
+            $ii->transaction_reference = null;
+            $ii->message_id = null;
+            $ii->email_error = '';
+            $ii->signature_base64 = '';
+            $ii->signature_date = null;
+            $ii->sent_date = null;
+            $ii->viewed_date = null;
+            $ii->opened_date = null;
+
+            return $ii;
+      }
+      
+}
+
+           
\ No newline at end of file
diff --git a/app/Jobs/Invitation/MarkOpened.php b/app/Jobs/Invitation/MarkOpened.php
new file mode 100644
index 000000000000..239a40d8d6bf
--- /dev/null
+++ b/app/Jobs/Invitation/MarkOpened.php
@@ -0,0 +1,68 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com)
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2019. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://opensource.org/licenses/AAL
+ */
+
+namespace App\Jobs\Invitation;
+
+use App\Models\Invoice;
+use App\Models\Payment;
+use App\Repositories\InvoiceRepository;
+use App\Utils\Traits\NumberFormatter;
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Support\Carbon;
+use Illuminate\Support\Facades\Mail;
+
+class MarkOpened implements ShouldQueue
+{
+    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels, NumberFormatter;
+
+    public $message_id;
+
+    public $entity;
+
+    /**
+     * Create a new job instance.
+     *
+     * @return void
+     */
+    public function __construct(string $message_id, string $entity)
+    {
+
+        $this->message_id = $message_id;
+
+        $this->entity = $entity;
+
+    }
+
+    /**
+     * Execute the job.
+     *
+     * 
+     * @return void
+     */
+    public function handle()
+    {
+        $invitation = $this->entity::with('user', 'contact')
+                        ->whereMessageId($this->message_id)
+                        ->first();
+
+        if (! $invitation) {
+            return false;
+        }
+
+        $invitation->email_error = $error;
+        $invitation->save();
+
+    }
+}
diff --git a/app/Mail/BouncedEmail.php b/app/Mail/BouncedEmail.php
new file mode 100644
index 000000000000..5e4c8e63b9ec
--- /dev/null
+++ b/app/Mail/BouncedEmail.php
@@ -0,0 +1,68 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com)
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2019. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://opensource.org/licenses/AAL
+ */
+
+namespace App\Mail;
+
+use App\Models\User;
+use Illuminate\Bus\Queueable;
+use Illuminate\Mail\Mailable;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class BouncedEmail extends Mailable implements ShouldQueue
+{
+    use Queueable, SerializesModels;
+
+    public $invitation;
+    /**
+     * Create a new message instance.
+     *
+     * @return void
+     */
+    public function __construct($invitation)
+    {
+        $this->invitation = $invitation;
+    }
+
+    /**
+     * Build the message.
+     *
+     * @return $this
+     */
+    public function build()
+    {
+        $entity_type = class_basename(lcfirst($this->invitation->getEntityType()));
+
+        $subject = ctrans("texts.notification_{$entity_type}_bounced_subject", ['invoice' => $invoice->invoice_number]);
+
+        return
+            $this->from($invitation->user->email)
+                ->text()
+                ->subject($subject);
+
+                //todo
+/*
+
+
+            //todo determine WHO is notified!! In this instance the _user_ is notified
+
+            Mail::to($invitation->user->email)
+            //->cc('')
+            //->bcc('')
+            ->queue(new BouncedEmail($invitation));
+ */
+        return $this->from('turbo124@gmail.com') //todo
+            ->subject(ctrans('texts.confirmation_subject'))
+            ->markdown('email.auth.verify', ['user' => $this->user])
+            ->text('email.auth.verify_text');
+*/
+    }
+}
diff --git a/app/Models/InvoiceInvitation.php b/app/Models/InvoiceInvitation.php
index 0bb78352dd5b..36f67ffdb680 100644
--- a/app/Models/InvoiceInvitation.php
+++ b/app/Models/InvoiceInvitation.php
@@ -11,6 +11,7 @@
 
 namespace App\Models;
 
+use App\Models\Invoice;
 use App\Utils\Traits\MakesDates;
 use Illuminate\Database\Eloquent\Model;
 
@@ -23,6 +24,11 @@ class InvoiceInvitation extends BaseModel
         'id',
     ];
 
+    public function entityType()
+    {
+        return Invoice::class;
+    }
+
     /**
      * @return mixed
      */
diff --git a/app/Repositories/InvoiceRepository.php b/app/Repositories/InvoiceRepository.php
index f0f7f61409e1..1cd244ce3915 100644
--- a/app/Repositories/InvoiceRepository.php
+++ b/app/Repositories/InvoiceRepository.php
@@ -13,10 +13,13 @@ namespace App\Repositories;
 
 use App\Events\Invoice\InvoiceWasCreated;
 use App\Events\Invoice\InvoiceWasUpdated;
+use App\Factory\InvoiceInvitationFactory;
 use App\Helpers\Invoice\InvoiceCalc;
 use App\Jobs\Company\UpdateCompanyLedgerWithInvoice;
 use App\Models\Invoice;
+use App\Models\InvoiceInvitation;
 use Illuminate\Http\Request;
+use Illuminate\Support\Carbon;
 
 /**
  * InvoiceRepository
@@ -82,10 +85,48 @@ class InvoiceRepository extends BaseRepository
 
         $invoice->status_id = Invoice::STATUS_SENT;
 
+        $this->markInvitationsSent();
+
         $invoice->save();
 
         return $invoice;
 
     }
 
+    private function markInvitationsSent(Invoice $invoice) :Invoice
+    {
+        $invoice->invitations->each(function($invitation, $key) {
+            $invitation->sent_date = Carbon::now()->format('Y-m-d H:i');
+            $invitation->save();
+        });
+    }
+
+    private function saveInvitations(Invoice $invoice) :Invoice
+    {
+        $contact_list = (array)$invoice->settings->invoice_email_list;
+
+        $contacts = ClientContact::findMany($contacts);
+
+        if (! $contacts->count()) {
+            return $invoice;
+        }
+
+        $contacts->each(function($contact, $key) use ($invoice){
+
+            $invitation = InvoiceInvitation::whereClientContactId($contact->id)->whereInvoiceId($invoice->id)->first();
+
+            if($!invitation){
+                $invitation = InvoiceInvitationFactory::create($invoice->company_id, $invoice->user_id);
+                $invitation->client_contact_id = $contact->id;
+                $invitation->invoice_id = $invoice->id;
+                $invitation->save();
+            }
+           
+
+        });
+
+
+        return $invoice;
+    }
+
 }
\ No newline at end of file