Thank you Gravityz

Second solution is OK, Shelly flip ON/OFF

First solution create all switche attached at the Shelly2.5 but there is no réaction...
I will réinstal plugin

Thank you

Hello
Ho do i to send messages MQTT with sensor ON/OFF by Domoticz?
I Try with this script "script://python/mqttpub.py shellies/Shelly25_Bureau/relay/0 on"

with this script here
https://blogwifi.fr/brouillon-auto/

On log I read feedback of sensor, so I understand that MQTT is OK.

With MQTT ...