Broker 10.5 | webMethods Broker Documentation | webMethods Broker Client Java API Programmer's Guide | Subscribing to and Receiving Events | Detecting Deadletters
Detecting Deadletters
Creating a Deadletter Subscription
Dead Letter Subscriptions and Filters
Dead Letter Permissions and Persistence
If a Broker receives an event for which it has no subscribers, it discards the event unless a dead letter subscription exists for that event type. A dead letter subscription enables you to trap events for which no subscriptions exist. Among other things, trapping dead letters can help to quickly identify and resolve discrepancies between a published event and the filtering criteria specified by a subscriber.