TitleEmail Notifications will not include a custom message
CauseThe Web Part configuration is incorrect.
1. The ezEdit tab called Email Notification allows you to enable the email section and to set the subject, message etc.
2. Configure the SMTP server setting using the Configuration Editor tool.
3. Once that is set the above the Web Part renders the email section. Use the link Show Users to display the users that have an email address associated in their profile.