update email from

hooks/templates/config_custom.php.erb

@@ -98,7 +98,7 @@ return [
             'presets'=>[<%= @replace["messenger-slack-presets"] %>],
         ],
         'email'=>[
-            'from'=>[<%= @replace["messenger-email-from"] %>],
+            'from'=><%= @replace["messenger-email-from"] %>,
         ],
     ],