diff --git a/Models/Channel.php b/Models/Channel.php
index e69de29..798bcc5 100755
--- a/Models/Channel.php
+++ b/Models/Channel.php
@@ -0,0 +1,13 @@
+<?php
+/**
+ * Karaka
+ *
+ * PHP Version 8.1
+ *
+ * @package   Modules\Messages\Models
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 2.0
+ * @version   1.0.0
+ * @link      https://jingga.app
+ */
+declare(strict_types=1);
diff --git a/Models/ChannelMapper.php b/Models/ChannelMapper.php
index e69de29..798bcc5 100755
--- a/Models/ChannelMapper.php
+++ b/Models/ChannelMapper.php
@@ -0,0 +1,13 @@
+<?php
+/**
+ * Karaka
+ *
+ * PHP Version 8.1
+ *
+ * @package   Modules\Messages\Models
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 2.0
+ * @version   1.0.0
+ * @link      https://jingga.app
+ */
+declare(strict_types=1);
diff --git a/Models/Email.php b/Models/Email.php
index aaa0034..5c925de 100755
--- a/Models/Email.php
+++ b/Models/Email.php
@@ -26,7 +26,7 @@ use phpOMS\Message\Mail\Email as MailEmail;
  * @link    https://jingga.app
  * @since   1.0.0
  */
-final class Email extends MailEmail implements \JsonSerializable
+class Email extends MailEmail implements \JsonSerializable
 {
     /**
      * Mail id.
diff --git a/Models/Server.php b/Models/Server.php
index e69de29..798bcc5 100755
--- a/Models/Server.php
+++ b/Models/Server.php
@@ -0,0 +1,13 @@
+<?php
+/**
+ * Karaka
+ *
+ * PHP Version 8.1
+ *
+ * @package   Modules\Messages\Models
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 2.0
+ * @version   1.0.0
+ * @link      https://jingga.app
+ */
+declare(strict_types=1);
diff --git a/Models/ServerMapper.php b/Models/ServerMapper.php
index e69de29..798bcc5 100755
--- a/Models/ServerMapper.php
+++ b/Models/ServerMapper.php
@@ -0,0 +1,13 @@
+<?php
+/**
+ * Karaka
+ *
+ * PHP Version 8.1
+ *
+ * @package   Modules\Messages\Models
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 2.0
+ * @version   1.0.0
+ * @link      https://jingga.app
+ */
+declare(strict_types=1);