Email configuration problems

Hello all, I have one problem setting up mail configurations in RQM, I have enabled the option on the Server Administration GUI, but the mails notifications are still not working, I checked the apache logs, and this error is displayed every time that I tried to send a mail:

javax.mail.AuthenticationFailedException
at javax.mail.Service.connect(Service.java:264)
at javax.mail.Service.connect(Service.java:134)
at com.ibm.team.repository.service.internal.MailerService.getConnectedTransport(MailerService.java:462)
at com.ibm.team.repository.service.internal.MailerService.sendMessage(MailerService.java:417)
at com.ibm.team.repository.service.internal.MailerService.sendMail(MailerService.java:391)
at com.ibm.team.repository.service.internal.MailerService.sendMail(MailerService.java:330)
at sun.reflect.GeneratedMethodAccessor299.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord.invoke(ExportProxyServiceRecord.java:378)
at org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord.access$0(ExportProxyServiceRecord.java:364)
at org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord$ExportedServiceInvocationHandler.invoke(ExportProxyServiceRecord.java:56)
at $Proxy301.sendMail(Unknown Source)
at com.ibm.team.workitem.service.internal.save.notify.ChangeEventMailNotifier.sendIndividualMails(ChangeEventMailNotifier.java:405)
at com.ibm.team.workitem.service.internal.save.notify.ChangeEventMailNotifier.processOneChange(ChangeEventMailNotifier.java:362)
at com.ibm.team.workitem.service.internal.save.notify.ChangeEventMailNotifier.runTask(ChangeEventMailNotifier.java:202)
at com.ibm.team.repository.service.async.AbstractAutoScheduledTask.executeTask(AbstractAutoScheduledTask.java:88)
at sun.reflect.GeneratedMethodAccessor130.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord.invoke(ExportProxyServiceRecord.java:378)
at org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord.access$0(ExportProxyServiceRecord.java:364)
at org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord$ExportedServiceInvocationHandler.invoke(ExportProxyServiceRecord.java:56)
at $Proxy209.executeTask(Unknown Source)
at com.ibm.team.repository.service.internal.scheduler.AsynchronousTaskRunner.runTask(AsynchronousTaskRunner.java:118)
at com.ibm.team.repository.service.internal.scheduler.AsynchronousTaskRunner.run(AsynchronousTaskRunner.java:92)
at java.lang.Thread.run(Thread.java:810)

Does someone have any idea to fix this problem?

These are the options I used to configure the service.
Connection Properties
Property Current Value Default Value
Enable E-mail Notification true false
SMTP Server smtpserver.ibm.com none
SMTP Server port 25 25
SMTP Username user@x.ibm.com none
SMTP Password *********** none
Restrict To Whitelist false false
Whitelist none
E-mail From Address user@x.ibm.com none
E-mail From Name RQM Admin none
SMTP Reply Address none
Use STARTTLS false false

Thanks!!!