Thanks Pixelnico
The groupx trick is very useful thanks!
However if I set the right of my CONTACT content type so that one can only create content in the frontend I won't be able to edit the submitted contents in the backend either.
We need to be able to view the submitted 'contact content' by the admins (if they loose the email or want to have stats). MAy be I didn't understand your solution ?
thanks
cyril