test use sections

app/UI/Client/Setting/Sections/AdditionalSection.php

@@ -25,7 +25,7 @@ class AdditionalSection extends FreeFieldsSection
     public function initContent()
     {
         $dkimsigenabled = new Switcher('dkimsigenabled');
-        $dkimsigenabled->addHtmlAttribute('readonly', true);
+        $dkimsigenabled->addHtmlAttribute('disabled', true);
         $this->generateDoubleSection([$dkimsigenabled]);
         $this->generateDoubleSection([new Switcher('tfaenabled')]);