Popular Dead-Letter Queues Articles

Message processing does not always succeed on the first attempt. A database may be temporarily unavailable, an external API may return a rate-limit response, a network request may time out, or a message may contain invalid data that can never be processed successfully. Reliable messaging systems mus

A poison message is a message that a consumer repeatedly fails to process successfully. The failure may come from invalid data, an incompatible schema, a permanent business-rule violation, corrupted content, or a bug triggered by that specific message.