This is the zimlet we created to save message and conversation in a readable txt file. You can download it here :
Développements libres - Starxpert
Read the documentation for details on functionnalities.
Here is a resume:
-Drag and drop of messages and conversations to save them in a txt file
-Double click on the zimlet icon to open the preferences.
-Right click on the zimlet icon to save basics folders in .eml format
All comments are welcome.