I don't know what I did in the OpenERP 7.0 demo but now the system tells me that when I want to create a new user: Cannot send email: no outgoing email server configured. You can configure it under Settings/Configuration/General Settings.

When I go in Outgoing Mail Servers settings I don't have any and it is writen: A default outgoing email server is already configured. You should not create an alternative one unless you really want to use a specific external outgoing email server for technical reasons.

I think I tested another server for the heck of it and it screw it up I guess...

Thanks for your help