Alert Configuration in SAP PO 7.4 Single Stack

Dear Experts,

I have followed One of the Michals popular blog  Michal's PI tips: Component-Based Message Alerting to create Alert Configuration.

I have created an alert rule, enable the PO system to send e-mails and schedule the alert consumer job as told in the blog.

But i am getting the following error when Job Completes ( Also no mail is getting triggered ) :                                                                                                                                                    

javax.mail.MessagingException: Exception reading response;

nested exception is:

java.net.SocketException: Connection reset

Job.onJob() execution finished with errors (caused by job)

Regards,

Ruban.S