In siddhi email documentation it says that the account configurations can be done on the deployment file. But there is no information about how to use those variables and where the deployment yaml should be or which deployment file should be. https://wso2-extensions.github.io/siddhi-io-email/api/1.0.2/
So I have tried creating a deployment file inside the conf/PROFILE/ and also tried adding the fields in all the deployment.yaml files. But I haven't found a way to use inside the siddhi app.