diff --git a/src/Backend.php b/src/Backend.php
index 01c9001..2bd4c10 100644
--- a/src/Backend.php
+++ b/src/Backend.php
@@ -15,20 +15,18 @@ declare(strict_types=1);
 namespace Dotclear\Plugin\emailNotification;
 
 use dcCore;
-use dcNsProcess;
+use Dotclear\Core\Process;
 
-class Backend extends dcNsProcess
+class Backend extends Process
 {
     public static function init(): bool
     {
-        static::$init = defined('DC_CONTEXT_ADMIN');
-
-        return static::$init;
+        return self::status(My::checkContext(My::BACKEND));
     }
 
     public static function process(): bool
     {
-        if (!static::$init) {
+        if (!self::status()) {
             return false;
         }
 
diff --git a/src/BackendBehaviors.php b/src/BackendBehaviors.php
index 8ed0441..6e870c8 100644
--- a/src/BackendBehaviors.php
+++ b/src/BackendBehaviors.php
@@ -26,11 +26,6 @@ class BackendBehaviors
 {
     public static function adminUserForm(): void
     {
-        // nullsafe PHP < 8.0
-        if (is_null(dcCore::app()->auth)) {
-            return;
-        }
-
         $options = dcCore::app()->auth->getOptions();
 
         echo
diff --git a/src/Frontend.php b/src/Frontend.php
index fecbe1d..c3dbb4b 100644
--- a/src/Frontend.php
+++ b/src/Frontend.php
@@ -17,7 +17,7 @@ namespace Dotclear\Plugin\emailNotification;
 use dcAuth;
 use dcBlog;
 use dcCore;
-use dcNsProcess;
+use Dotclear\Core\Process;
 use Dotclear\Database\{
     Cursor,
     MetaRecord
@@ -30,24 +30,22 @@ use Dotclear\Helper\Html\Html;
 use Dotclear\Helper\Network\Mail\Mail;
 use rsExtUser;
 
-class Frontend extends dcNsProcess
+class Frontend extends Process
 {
     public static function init(): bool
     {
-        static::$init = defined('DC_RC_PATH');
-
-        return static::$init;
+        return self::status(My::checkContext(My::FRONTEND));
     }
 
     public static function process(): bool
     {
-        if (!static::$init) {
+        if (!self::status()) {
             return false;
         }
 
         dcCore::app()->addBehavior('publicAfterCommentCreate', function (Cursor $cur, ?int $comment_id): void {
             // nullsafe PHP < 8.0
-            if (is_null(dcCore::app()->auth) || is_null(dcCore::app()->blog)) {
+            if (is_null(dcCore::app()->blog)) {
                 return;
             }
 
diff --git a/src/My.php b/src/My.php
new file mode 100644
index 0000000..6ffabdc
--- /dev/null
+++ b/src/My.php
@@ -0,0 +1,21 @@
+<?php
+/**
+ * @brief emailNotification, a plugin for Dotclear 2
+ *
+ * @package Dotclear
+ * @subpackage Plugin
+ *
+ * @author Olivier Meunier and contributors
+ *
+ * @copyright Jean-Christian Denis
+ * @copyright GPL-2.0 https://www.gnu.org/licenses/gpl-2.0.html
+ */
+declare(strict_types=1);
+
+namespace Dotclear\Plugin\emailNotification;
+
+use Dotclear\Module\MyPlugin;
+
+class My extends MyPlugin
+{
+}