Key topics covered in this documentation guide are An overview of queue TTL and message TTL features supported by RabbitMQ Per-queue message TTL defined at the queue level Per-message TTL defined by publishers Message TTL and dead lettering Message TTL applied retroactively Queue TTL (expiration of queues) Time-To-Live Feature With RabbitMQ, you can set a TTL (time-to-live) argument or policy for