Restart processing of messages enqueued for the specified channel. The Job Controller not only marks the channel as “okay” to process, but it additionally starts processing jobs for the channel. This command takes effect whether the Job Controller is running or not.
The channel parameter specifies the channel to restart.
The command imsimta qm start/stop channel may fail if run simultaneously for many channels at the same time. The tool might have trouble updating the hold_list and could report: "QM-E-NOTSTOPPED, unable to stop the channel; cannot update the hold list." imsimta qm start/stop channel should only be used sequentially with a few seconds interval between each run. If you only want the channel to run between certain hours, use the following options in the channel definition section in the job controller configuration file: urgent_delivery=08:00-20:00