As of version 7.1 of MQ, the default security configuration is more restrictive and as such will probably need to be modified further before you can get a successful connection via a channel that has mcauser('mqm').

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{qmgr} Queue Manager Name
{User} The MQ user being used by Lamaxu

Enable Queue Manager Monitoring and Statistics

The MONQ and MONCHL must be set to MEDIUM or higher to enable MQ to publish the Status and event information.

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