Outbound Endpoints
The following outbound endpoints have many similar configuration options.
Starting with version 5.2, the confirm-timeout has been added.
Normally, when publisher confirms are enabled, the broker will quickly return an ack (or nack) which will be sent to the appropriate channel.
If a channel is closed before the confirm is received, the Spring AMQP framework will synthesize a nack.
"Missing" acks should never occur but, if you set this property, the endpoint will periodically check for them and synthesize a nack if the time elapses without a confirm being received.