munluk

Hi @chrismaes87 , I just wanted make a note at this point. MQTT is not a message queue. The re-delivery of messages (probably depending on the MQTT version) is specified...

@linuxbasic, the manual acknowledging is built in the java version of the paho client :wink: https://github.com/eclipse/paho.mqtt.java/blob/master/org.eclipse.paho.mqttv5.client/src/main/java/org/eclipse/paho/mqttv5/client/IMqttAsyncClient.java#L823