There are some jobs, that are not defined in Deliver, that show RMOQPR01 messages in the output:
RMOQPR01 NO RESPONSE - VERIFY taskname IS ACTIVE (sid).
They had last stopped the Deliver RMOSTC task with "/P rmostc", which (though stopping the task) did not remove Deliver's "hooks" from the system.
The RMOQPR01 messages were issued, in the client's application job run, because:
When stopping the Deliver RMOSTC task, "/F rmostc,OFF" should always be used, so that the hooks are removed, as well as the RMOSTC task being stopped.
If the task was last brought down with "/P rmostc", then the RMOSTC task should be started with "/S rmostc,PARM=OFF", so that the task can come up, remove the hooks, then shut down.