To start an MTA-only system, you should also start imsched. Before you do this, remove any scheduled jobs that are not appropriate to your installations.
imschedis an individual component of Messaging Server which must be started separately if you are not starting all of Messaging Server. If you start your MTA-only system using start-msg imtaor start-msg smtp, then you will not be running the imsched process.
To run messaging server in MTA mode only (no store/imap/pop/http processes), then you can either select the MTA to be only installed/configured during the configuration of messaging server after initial install (msg_base/sbin/configure) or manually disable the message store and mshttp process using the following configutil commands:
./configutil -o local.store.enable -v 0 ./configutil -o service.http.enable -v 0
Once you have disabled http and other store processes, you can then start messaging server by running the following:
# ./start-msg bash-3.00# ./start-msg Connecting to watcher ... Launching watcher ... 4034 Starting ens server ... 4035 Starting sched server ... 4036 Starting dispatcher server .... 4038 Starting job_controller server .... 4042
Not that all the appropriate processes are started including imsched and imta. This way the customer doesn't have to remember to start the sched process.