The qmgr(8) daemon maintains the following queues: incoming Inbound mail from the network, or mail picked up by the local pickup(8) daemon from the maildrop directory. The syntax of each directive is checked and the appropriate request is sent to the batch server or servers. Note The QMgrName is used by IBM MQ applications, other IBM MQ queue managers, and IBM MQ control commands to identify this queue manager. Create and configure a queue manager in MQ on Ubuntu, and then use a demo app to put and get messages to and from a queue. I have to mention that I'm using ubuntu server 18.