Template files within the mailing list manager are text files containing programming elements (variables, conditions, loops, file inclusions) that will be parsed in order to adapt to the runtime context. These templates are an extension of programs and therefore give access to a limited list of variables.
Example:
From: [conf->email]@[conf->host] Subject: Unsubscription from [list->name] Your email address ([user->email]) has been removed from the list [list->name]@[list->host] bye!