I am using https://github.com/ibm-messaging/mq-container to start IBM MQ on local dev machine. Here is my docker-compose:
version: '2'
services:
ibmmq:
image: icr.io/ibm-messaging/mq:9.3.2.1-r1
volumes:
- ./config.mqsc:/etc/mqm/config.mqsc
environment:
- LICENSE=accept
- MQ_QMGR_NAME=QM1
- MQ_ADMIN_PASSWORD=passw0rd
ports:
- 1414:1414
- 9443:9443
Now, I am trying to connect to it using JMSToolBox without success:

Logs from mq-container:
ibmmq-ibmmq-1 | 2023-05-16T08:19:51.019Z AMQ9722W: Plain text communication is enabled.
ibmmq-ibmmq-1 | 2023-05-16T08:19:51.042Z AMQ5806I: Queued Publish/Subscribe Daemon started for queue manager QM1. [CommentInsert1(QM1)]
ibmmq-ibmmq-1 | 2023-05-16T08:19:56.432Z AMQ8077W: Entity 'admin' has insufficient authority to access object QM1 [qmgr]. [CommentInsert1(admin), CommentInsert2(QM1 [qmgr]), CommentInsert3(connect)]
ibmmq-ibmmq-1 | 2023-05-16T08:19:56.432Z AMQ9557E: Queue Manager User ID initialization failed for 'mqm'. [ArithInsert1(2), ArithInsert2(2035), CommentInsert1(mqm), CommentInsert2(admin), CommentInsert3(admin)]
What I am doing wrong? How to send a message to MQ using JMSToolBox?
Note:
I took those settings from default Spring Boot configuration https://github.com/ibm-messaging/mq-jms-spring/blob/master/mq-jms-spring-boot-starter/src/main/java/com/ibm/mq/spring/boot/MQConfigurationProperties.java because my @JmsListener (which I want to test sending a message to it) connects to this queue perfectly fine.
You have an authorization issue, and not an authentication one. The connection seems to be fine, and if you are performing admin actions the connection settings are ok.
If you are trying to put / publish a message then you will need to use
appand notadminand connect toDEV.APP.SVRCONN