Email settings
De MoodleDocs
Location: Administration > Server > Email
Allowed and denied email domains
Authentication may be restricted to particular email domains when using Email-based self-registration so that, for example, only students with a university email can login.
Support
Plantilla:Moodle 1.9From Moodle 1.9 onwards, a support name, support email and support page may be set up for users requiring general help.