The JMX console can be accessed after the WebCenter JBoss Service has successfully started. You can use it to check a JMS Queue.
Follow these steps to open the JMX console and check the JMS queue:
Open a browser and browse to the following URL: http://<ApplicationServerName>:8086/admin-console/ where <ApplicationServerName> is the Host Name of the machine that is running WebCenter JBoss (if it is the current machine, you can use localhost instead).
Even though the JMX console is listening on port 8080 by default, WebCenter uses port 8086.
Enter the User Name(BGSYSTEM) and Password (the BGSYSTEM password).
Navigate to: <hostname> > JBossAS Servers > JBoss AS 6 (default) > JMS Manager > JMS Queues > jms.queue.WCRMailQueue.
Check Message Count to learn how many messages are waiting in the JMS queue.
To flush the queue, go to the Control section. An alternative way to flush the queue is disabling e-mail notifications in the WebCenter e-mail settings.
If you do not plan to use E-mail Notifications, they should always be disabled to prevent the mail queue from filling up.