diff --git a/plugins/addons/mailtemplate/class_mailTemplateInvitations.inc b/plugins/addons/mailtemplate/class_mailTemplateInvitations.inc
new file mode 100644
index 0000000000000000000000000000000000000000..72d75d473c5976c1211b8e001d63e113a406b143
--- /dev/null
+++ b/plugins/addons/mailtemplate/class_mailTemplateInvitations.inc
@@ -0,0 +1,74 @@
+<?php
+/*
+  This code is part of FusionDirectory (http://www.fusiondirectory.org)
+
+  Copyright (C) 2018-2022 FusionDirectory
+
+  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 St, Fifth Floor, Boston, MA 02110-1301, USA
+*/
+
+class mailTemplateInvitations extends simplePlugin
+{
+  protected $displayHeader = TRUE;
+
+  static function plInfo (): array
+  {
+    return [
+      'plShortName'   => _('Mail Template Invitations'),
+      'plDescription' => _('Mail Template Invitations'),
+      'plIcon'        => 'geticon.php?context=applications&icon=supann&size=48',
+      'plSmallIcon'   => 'geticon.php?context=applications&icon=supann-status&size=16',
+      'plPriority'    => 33,
+      'plObjectClass' => ['fdMailTemplateInvitations'],
+      'plFilter'      => '(objectClass=fdMailTemplateInvitations)',
+      'plObjectType'  => ['mailTemplate'],
+      'plConflicts'   => ['mailTemplateUserReminder', 'mailTemplateUserRecovery'],
+      'plProvidedAcls'  => parent::generatePlProvidedAcls(static::getAttributesInfo())
+    ];
+  }
+
+  static function getAttributesInfo (): array
+  {
+    return  [
+
+    ];
+  }
+
+  function __construct ($dn = NULL, $object = NULL, $parent = NULL, $mainTab = FALSE)
+  {
+    global $config;
+    parent::__construct($dn, $object, $parent, $mainTab);
+  }
+
+  protected function shouldSave (): bool
+  {
+    global $config;
+
+    $ldap = $config->get_ldap_link();
+    $ldap->cd($config->current['BASE']);
+    $ldap->search('(&(objectClass=fdMailTemplateInvitations))', ['cn','fdMailTemplateInvitations']);
+    while ($attrs = $ldap->fetch()) {
+      if (isset($this->attrs['fdMailTemplateInvitations'])) {
+        $error = new FusionDirectoryError(htmlescape(sprintf(_('Invitations Mail Template Is Already Existing!'))));
+        $error->display();
+
+        return FALSE;
+      }
+    }
+
+    return TRUE;
+  }
+
+}
diff --git a/plugins/addons/mailtemplate/class_mailTemplateUserRecovery.inc b/plugins/addons/mailtemplate/class_mailTemplateUserRecovery.inc
index 0d11b850a27a09504b4f3b37f6057f1c275bec54..efa76ec0f88ea23495bbdf15afb7c288da427c59 100644
--- a/plugins/addons/mailtemplate/class_mailTemplateUserRecovery.inc
+++ b/plugins/addons/mailtemplate/class_mailTemplateUserRecovery.inc
@@ -2,7 +2,7 @@
 /*
   This code is part of FusionDirectory (http://www.fusiondirectory.org)
 
-  Copyright (C) 2018-2019 FusionDirectory
+  Copyright (C) 2018-2022 FusionDirectory
 
   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
@@ -34,7 +34,7 @@ class mailTemplateUserRecovery extends simplePlugin
       'plObjectClass' => ['fdMailTemplateUserRecovery'],
       'plFilter'      => '(objectClass=fdMailTemplateUserRecovery)',
       'plObjectType'  => ['mailTemplate'],
-      'plConflicts'   => ['mailTemplateUserReminder'],
+      'plConflicts'   => ['mailTemplateUserReminder', 'mailTemplateInvitations'],
       'plProvidedAcls'  => parent::generatePlProvidedAcls(static::getAttributesInfo())
     ];
   }
diff --git a/plugins/addons/mailtemplate/class_mailTemplateUserReminder.inc b/plugins/addons/mailtemplate/class_mailTemplateUserReminder.inc
index d885606ff3a1ccad82bd350246868ba8eab8c13c..455d9bc7bf3b6f77a5e475f1d2ae1aae05f31874 100644
--- a/plugins/addons/mailtemplate/class_mailTemplateUserReminder.inc
+++ b/plugins/addons/mailtemplate/class_mailTemplateUserReminder.inc
@@ -1,5 +1,25 @@
 <?php
 
+/*
+  This code is part of FusionDirectory (http://www.fusiondirectory.org)
+
+  Copyright (C) 2018-2022 FusionDirectory
+
+  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 St, Fifth Floor, Boston, MA 02110-1301, USA
+*/
+
 class mailTemplateUserReminder extends simplePlugin
 {
   protected $displayHeader = TRUE;
@@ -15,7 +35,7 @@ class mailTemplateUserReminder extends simplePlugin
       'plObjectClass' => ['fdMailTemplateUserReminder'],
       'plFilter'      => '(objectClass=fdMailTemplateUserReminder)',
       'plObjectType'  => ['mailTemplate'],
-      'plConflicts'   => ['mailTemplateUserRecovery'],
+      'plConflicts'   => ['mailTemplateUserRecovery', 'mailTemplateInvitations'],
       'plProvidedAcls'  => parent::generatePlProvidedAcls(static::getAttributesInfo())
     ];
   }
diff --git a/plugins/config/mailtemplate/class_mailTemplateConfig.inc b/plugins/config/mailtemplate/class_mailTemplateConfig.inc
index 6a6c26678556bef3c5b2dc961bce7602de848e7f..a1a2e8957ed6635ba889de9367e8a2fa09ef0f8f 100644
--- a/plugins/config/mailtemplate/class_mailTemplateConfig.inc
+++ b/plugins/config/mailtemplate/class_mailTemplateConfig.inc
@@ -1,7 +1,7 @@
 <?php
 /*
   This code is part of FusionDirectory (http://www.fusiondirectory.org/)
-  Copyright (C) 2012-2016 FusionDirectory
+  Copyright (C) 2012-2022 FusionDirectory
 
   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