#746 email notification not working

[Anonymous]

I have modified the framework properties in ControlTier and also I can
see the mail address in job.xml when I run the addhoc command from
ControlTier it shows the following error

2011-08-01 10:44:46.103::INFO: Started
SelectChannelConnec...@0.0.0.0:8080
2011-08-01 10:45:26.660::WARN: No CallbackHandler configured: using
DefaultCall
backHandler
2011-08-01 10:45:35.268:/ctlcenter:INFO: Initializing Spring
FrameworkServlet '
gsp'
2011-08-01 10:45:35.268:/ctlcenter:INFO: GSP servlet initialized
INFO - Job completed successfully
Error sending notification email: Mail server connection failed;
nested exceptio
n is javax.mail.MessagingException: Exception reading response;
nested exception is:
java.net.SocketException: Connection reset

I can send the mail through my own java class using the same
properties and also I can send the mail from ant script mail task
also.

Please give me your input ASAP.