Hi Tun,
You could create a custom mail producer by implement org.jbpm.pvm.internal.email.spi.MailProducer.
org.jbpm.pvm.internal.email.spi.MailProducer.
You could find more information in developer guide http://docs.jboss.com/jbpm/v4/devguide/html_single/#custommailproducers.
Reply to this message by going to Community
Start a new discussion in jBPM at Community