Daniel Rosengarten

I confirm that it's working with the hostname. Looks like there is a DNS problem in your network. The "myhostname" is not registred on the referenced DNS on the ESP32,...

I've tested the code and it works for me. It's retro-compatible with old code. **MQTTS (without Root CA validation -> unsecure)** `EspMQTTClient client(wifi_ssid, wifi_password, mqtt_host, mqtt_login, mqtt_password, host, mqtt_port)` **MQTTS...

@cedricboon is there any chance you find time to check the code and accept the pull request ?

It seems that @cedricboon has no time to do the review. It would be nice if a maintainer (@lsiepel, @jlaur, @lolodomo, @fwolter) can review and, if it's OK, merge this...