--- a/libervia/backend/tools/common/data_objects.py	Wed Nov 22 15:10:04 2023 +0100
+++ b/libervia/backend/tools/common/data_objects.py	Wed Nov 22 15:11:25 2023 +0100
@@ -42,8 +42,8 @@
         self._message_data = msg_data[4]
         self._subject_data = msg_data[5]
         self._type = msg_data[6]
-        self._extra = data_format.deserialise(msg_data[7])
-        self._html = dict(data_format.get_sub_dict("xhtml", self._extra))
+        self.extra = data_format.deserialise(msg_data[7])
+        self._html = dict(data_format.get_sub_dict("xhtml", self.extra))
 
     @property
     def id(self):
@@ -77,23 +77,23 @@
 
     @property
     def thread(self):
-        return self._extra.get("thread")
+        return self.extra.get("thread")
 
     @property
     def thread_parent(self):
-        return self._extra.get("thread_parent")
+        return self.extra.get("thread_parent")
 
     @property
     def received(self):
-        return self._extra.get("received_timestamp", self._timestamp)
+        return self.extra.get("received_timestamp", self._timestamp)
 
     @property
     def delay_sender(self):
-        return self._extra.get("delay_sender")
+        return self.extra.get("delay_sender")
 
     @property
     def info_type(self):
-        return self._extra.get("info_type")
+        return self.extra.get("info_type")
 
     @property
     def html(self):
@@ -106,7 +106,7 @@
 
     @property
     def attachments(self):
-        return self._extra.get("attachments", [])
+        return self.extra.get("attachments", [])