newbie here - mail fetching error

newbie here - mail fetching error

Hi all, I have just tried to install SD+ for testing purpose. However, I have encountered problem with mail fetching. Here is the log file that i have copied out. Please advise me.

[22:13:25:860]|[12-27-2008]|[com.adventnet.servicedesk.helpdesk.mail.task.MailFetchingTask]|[INFO]|[21]|: MailFetchingTask ---> executeTask() called ... |
[22:13:25:860]|[12-27-2008]|[com.adventnet.sqlone.search.dbcrawler.ejb.internal.DatabaseCrawler]|[INFO]|[21]|: Connection obtained for crawling the database <AppIndexingInfo CRID="140" APPLICATIONID="1" APPLICATIONNAME="ServiceDesk" APPDSNAME="default" MAXWORDSIZE="200" INDEXINGDELIMITERS=",:@-. (){}" ENABLEPARTIALSEARCH="true" ENABLEDYNAMICINDEXING="true" ENABLEINCREMENTALINDEXING="false" POPULATE_FK_REL="false" STATUS="0" />|
[22:14:25:828]|[12-27-2008]|[com.adventnet.servicedesk.helpdesk.mail.task.MailFetchingTask]|[INFO]|[27]|: MailFetchingTask instantiated. |
[22:14:25:828]|[12-27-2008]|[com.adventnet.servicedesk.helpdesk.mail.task.MailFetchingTask]|[INFO]|[27]|: Host : mail.intelli-mark.com.my, username : support, mailbox : INBOX, protocol : pop3, interval : 1, port : 110|
[22:14:25:828]|[12-27-2008]|[com.adventnet.servicedesk.helpdesk.mail.task.MailFetchingTask]|[INFO]|[27]|: Obtained mail fetching session.|
[22:14:25:828]|[12-27-2008]|[com.adventnet.servicedesk.helpdesk.mail.task.MailFetchingTask]|[INFO]|[27]|: Obtained mail store from session.|
[22:14:25:828]|[12-27-2008]|[com.adventnet.servicedesk.helpdesk.mail.task.MailFetchingTask]|[SEVERE]|[27]|: Exception when connecting to store.|javax.mail.AuthenticationFailedException: Command is not valid in this state.
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:146)
at javax.mail.Service.connect(Service.java:275)
at com.adventnet.servicedesk.helpdesk.mail.task.MailFetchingTask.initialize(MailFetchingTask.java:157)
at com.adventnet.servicedesk.helpdesk.mail.task.MailFetchingTask.<init>(MailFetchingTask.java:61)
at sun.reflect.GeneratedConstructorAccessor55.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at com.adventnet.workengine.task.internal.TaskManagerImpl.executeTask(TaskManagerImpl.java:705)
at com.adventnet.workengine.executor.internal.WorkFlowExecutor.executeStartingTask(WorkFlowExecutor.java:160)
at com.adventnet.workengine.executor.internal.WorkFlowExecutor.executeWorkFlowTemplate(WorkFlowExecutor.java:115)
at com.adventnet.workengine.executor.internal.WorkFlowExecutor.executeWorkFlow(WorkFlowExecutor.java:105)
at com.adventnet.workengine.workflow.ejb.internal.WorkFlowExecutorBean.executeWorkFlow(WorkFlowExecutorBean.java:105)
at sun.reflect.GeneratedMethodAccessor103.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:683)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:186)
at org.jboss.ejb.plugins.AbstractInterceptor.invoke(AbstractInterceptor.java:94)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:72)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)
at com.adventnet.authentication.interceptor.SecurityInterceptor.invoke(SecurityInterceptor.java:108)
at com.adventnet.audit.interceptor.AuditInterceptor.invoke(AuditInterceptor.java:128)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
at com.adventnet.logging.tracing.TracingInterceptor.invoke(TracingInterceptor.java:136)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at org.jboss.ejb.StatelessSessionContainer.internalInvoke(StatelessSessionContainer.java:331)
at org.jboss.ejb.Container.invoke(Container.java:709)
at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalProxyFactory.java:419)
at org.jboss.ejb.plugins.local.StatelessSessionProxy.invoke(StatelessSessionProxy.java:83)
at $Proxy98.executeWorkFlow(Unknown Source)
at com.adventnet.workengine.executor.internal.RemoteWorkFlowExecutionHandler.execute(RemoteWorkFlowExecutionHandler.java:77)
at com.adventnet.workengine.internal.WorkEngineImpl$WorkFlowExecutorThread.run(WorkEngineImpl.java:931)
at com.adventnet.workengine.service.ThreadPoolService$WorkerThread.run(ThreadPoolService.java:256)
at java.lang.Thread.run(Unknown Source)













































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