Application owners must specify an application’s e-mail server before others can enable e-mail notification. After e-mail notification is configured, users receive e-mail when they become owners of planning units, or are specified as a user to notify. This feature is available for SMTP e-mail systems only; to specify the e-mail server, see Specifying System Settings.
If the e-mail server name is valid, the application owner becomes the source of all e-mail notifications. If the e-mail server name is not valid, nobody can enable e-mail notification.