Dear David You need to install the modules to let it work for you, U need to install the registration model, the authentication module, and you need to install the email client like ( sendmail) for your server. and create an account on gmail or yahoo or any mail server which are public servers, and put in ur account details (username and password) in your server sendmail application so the application could use your account and sent email notifications to others.
Just google for more informations best regards -- You received this message because you are subscribed to the Google Groups "Trac Users" group. To post to this group, send email to trac-users@googlegroups.com. To unsubscribe from this group, send email to trac-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/trac-users?hl=en.