Publishing Engine Programmer's Guide > The Arbortext Publishing Engine Request Manager > Predefined Dynamic Components > Pre-Defined Notifiers
  
Pre-Defined Notifiers
Arbortext Publishing Engine ships with one Notifier object, a Java object named com.arbortext.e3.queue.MailNotifier.
The Mail Notifier can send email when a transaction changes state. The Mail Notifier may be configured to use a TestSet element in e3config.xml to identify the transactions for which it will send email. If no TestSet is configured, the Mail Notifier will send email for every transaction.
Refer to the Configuration Guide for Arbortext Publishing Engine for information on configuring a notifier.