I would like to modify the "welcome message" and "reset password message". The parameter object.signup_url contain the local ip of the server. Those messages should contain the domain (openerp.domain.com) instead of the the local ip address of the machine. How to change this parameter?
Go to settings -> users -> users. Edit your user, and check "technical features"
Now, go to settings -> technical -> email -> templates
On the finder on the top left of the screen type "password". Now you will see the template you want to change.
This is the way to edit the template of restore password email, but I think you should change your local ip address to your.domain.com in settings -> general settings -> alias domain