rehankhan [https://community.jboss.org/people/rehankhan] created the discussion "Want to send email using jbpm5 but got some error" To view the discussion, visit: https://community.jboss.org/message/792304#792304 --------------------------------------------------------------     ProcessMain.java import java.util.HashMap; import java.util.Map; import org.drools.KnowledgeBase; import org.drools.builder.KnowledgeBuilder; import org.drools.builder.KnowledgeBuilderFactory; import org.drools.builder.ResourceType; import org.drools.io.ResourceFactory; import org.drools.logger.KnowledgeRuntimeLogger; import org.drools.logger.KnowledgeRuntimeLoggerFactory; import org.drools.runtime.StatefulKnowledgeSession; import org.jbpm.process.instance.impl.demo.SystemOutWorkItemHandler; import org.jbpm.process.workitem.email.EmailWorkItemHandler; public class ProcessMain {     public static final void main(String[] args) {         try {             // load up the knowledge base             KnowledgeBase kbase = readKnowledgeBase();             StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();             EmailWorkItemHandler emailHandler = new EmailWorkItemHandler();              emailHandler.setConnection("smtp.gmail.com", "587", " mailto:myid@gmail.com myid(a)gmail.com", "mypassword");              emailHandler.getConnection().setStartTls(true);             ksession.getWorkItemManager().registerWorkItemHandler("Email", emailHandler);             ksession.startProcess("com.sample.bpmn");             System.out.println("Process started ...");               //  emailHandler.getConnection();         } catch (Throwable t) {             t.printStackTrace();         }     }     private static KnowledgeBase readKnowledgeBase() throws Exception {         KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();         kbuilder.add(ResourceFactory.newClassPathResource("mail.bpmn"), ResourceType.BPMN2);         return kbuilder.newKnowledgeBase();     } } following error is given come org.jbpm.workflow.instance.WorkflowRuntimeException: [com.sample.bpmn:1 - Email:2] -- Unable to send email     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:132)     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerNodeInstance(NodeInstanceImpl.java:279)     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:238)     at org.jbpm.workflow.instance.node.StartNodeInstance.triggerCompleted(StartNodeInstance.java:49)     at org.jbpm.workflow.instance.node.StartNodeInstance.internalTrigger(StartNodeInstance.java:41)     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:126)     at org.jbpm.ruleflow.instance.RuleFlowProcessInstance.internalStart(RuleFlowProcessInstance.java:35)     at org.jbpm.process.instance.impl.ProcessInstanceImpl.start(ProcessInstanceImpl.java:194)     at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.start(WorkflowProcessInstanceImpl.java:309)     at org.jbpm.process.instance.ProcessRuntimeImpl.startProcessInstance(ProcessRuntimeImpl.java:170)     at org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:140)     at org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:132)     at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1093)     at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:315)     at ProcessMain.main(ProcessMain.java:38) Caused by: java.lang.RuntimeException: Unable to send email     at org.jbpm.process.workitem.email.SendHtml.sendHtml(SendHtml.java:65)     at org.jbpm.process.workitem.email.SendHtml.sendHtml(SendHtml.java:37)     at org.jbpm.process.workitem.email.EmailWorkItemHandler.executeWorkItem(EmailWorkItemHandler.java:68)     at org.drools.process.instance.impl.DefaultWorkItemManager.internalExecuteWorkItem(DefaultWorkItemManager.java:70)     at org.jbpm.workflow.instance.node.WorkItemNodeInstance.internalTrigger(WorkItemNodeInstance.java:107)     at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:126)     ... 14 more Caused by: java.lang.RuntimeException: Connection failure     at org.jbpm.process.workitem.email.SendHtml.sendHtml(SendHtml.java:59)     ... 19 more Caused by: com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.0 Must issue a STARTTLS command first. a4sm12928682pax.25     at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1388)     at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:959)     at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:583)     at org.jbpm.process.workitem.email.SendHtml.sendHtml(SendHtml.java:57)     ... 19 more -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/792304#792304] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]