RabbitMQ server and its tier 1 (core) plugins source code is licensed under the MPL 2.0. For the MPL2, please see LICENSE-MPL-RabbitMQ. Some RabbitMQ server OCF files are licensed under the Apache Software License 2.0. For the ASL2, please see LICENSE-APACHE2. If you have any questions regarding licensing, please contact us at info@rabbitmq.com.