diff --git a/localPackages/example_extension/Classes/Controller/AddressController.php b/localPackages/example_extension/Classes/Controller/AddressController.php
index 1d75f28..04bf58f 100644
--- a/localPackages/example_extension/Classes/Controller/AddressController.php
+++ b/localPackages/example_extension/Classes/Controller/AddressController.php
@@ -55,13 +55,11 @@ class AddressController extends ActionController
     {
         $this->addressRepository->update($address);
 
-        $this->addFlashMessage(
-            LocalizationUtility::translate('flashSuccess', 'ExampleExtension', [
-                'companyName' => $address->getCompanyName(),
-                'street' => $address->getStreet(),
-            ]),
-            'Update successfully'
-        );
+        $this->signalSlotDispatcher->dispatch(__CLASS__, 'addressUpdated', [
+            $address,
+            $this,
+        ]);
+
         $this->redirect('index');
     }
 }
diff --git a/localPackages/example_extension/Classes/Domain/Event/Address.php b/localPackages/example_extension/Classes/Domain/Event/Address.php
new file mode 100644
index 0000000..3dd9b62
--- /dev/null
+++ b/localPackages/example_extension/Classes/Domain/Event/Address.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Workshop\ExampleExtension\Domain\Event;
+
+/*
+ * Copyright (C) 2019 Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+use TYPO3\CMS\Core\Mail\MailMessage;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
+use Workshop\ExampleExtension\Controller\AddressController;
+use Workshop\ExampleExtension\Domain\Model\Address as AddressModel;
+
+class Address
+{
+    public function updated(AddressModel $address, AddressController $controller)
+    {
+        $this->sendUpdateEMail($address);
+        $this->addUpdateFlashMessage($address, $controller);
+    }
+
+    private function sendUpdateEmail(AddressModel $address)
+    {
+        $mail = GeneralUtility::makeInstance(MailMessage::class);
+
+        $mail->setSubject('Address ' . $address->getCompanyName() . ' was updated');
+        $mail->setTo(array('coding@daniel-siepmann.de'));
+        $mail->setBody('The address ' . $address->getCompanyName() . ' was successfully updated.');
+        $mail->send();
+    }
+
+    private function addUpdateFlashMessage(AddressModel $address, AddressController $controller)
+    {
+        $controller->addFlashMessage(
+            LocalizationUtility::translate('flashSuccess', 'ExampleExtension', [
+                'companyName' => $address->getCompanyName(),
+                'street' => $address->getStreet(),
+            ]),
+            'Update successfully'
+        );
+    }
+}
diff --git a/localPackages/example_extension/ext_localconf.php b/localPackages/example_extension/ext_localconf.php
index addac49..c4df2d8 100644
--- a/localPackages/example_extension/ext_localconf.php
+++ b/localPackages/example_extension/ext_localconf.php
@@ -41,4 +41,11 @@
             }
         }
     ');
+
+    \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\TYPO3\CMS\Extbase\SignalSlot\Dispatcher::class)->connect(
+        \Workshop\ExampleExtension\Controller\AddressController::class,
+        'addressUpdated',
+        \Workshop\ExampleExtension\Domain\Event\Address::class,
+        'updated'
+    );
 })();