I. Introduction In this post I evaluated the level of integration of WSO2 ESB with different opensource message brokers such as Qpid, RabbitMQ, ActiveMQ and WSO2 Message Broker (https://holisticsecurity.wordpress.com/2015/01/25/evaluacion-nivel-madurez-integracion-message-brokers-opensource-wso2-esb). At the end, we got the conclusion that RabbitMQ is / was the most used message broker, poorly integrated and not easily integrable with WSO2 ESB. […]