--- a/src/pyams_content/shared/form/handler.py	Mon Sep 16 16:57:01 2019 +0200
+++ b/src/pyams_content/shared/form/handler.py	Tue Sep 17 12:03:03 2019 +0200
@@ -76,6 +76,6 @@
     target_interface = IMailtoHandlerTarget
     handler_info = IMailtoHandlerInfo
 
-    def handle(self, form, data):
+    def handle(self, form, data, user_data):
         # TODO: handle form data
         pass