Hi,
We've been using your service for some time now and are very happy about the results. Thanks for this!

Our setup is the following:
Sensor - (Dash 7)-> gateway -(mqtt)-> server
On the server, we do authentication of the gateway but also the sensor sending the information. When an unauthenticated sensor sends a message through our gateway, the gateway gets disconnected from the broker as per the following documentation: http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc39871804 .

Now I've created some code to manually delete the last entry and this seems to work but when the service reconnects, it seems to publish all messages in the _out_messages queue while we've set the max_inflight_messages to 1. I've looked at the code and looks like there's no check for this (https://github.com/eclipse/paho.mqtt.python/blob/master/src/paho/mqtt/client.py#L3054). Shouldn't we check here if we're not publishing to many messages at once?

Thank you in advance!

Kind regards,
Liam