Not able to send email - SMTP service

Today i applied the Service Pack 2, now i got trouble sending out email’e by invoking SMTP service. I configuration there is no place to mention the mailhost’s port.But take a look at the following error message it mention’s about the port number. I am wondering is that the default one.

I guess the service pack causing the problem, it was working just before applying the SP. Please advise

Jayakumar

2002-12-16 16:12:25 PST com.wm.app.b2b.server.ServiceException: javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.MessagingException: Could not connect to SMTP host: 172.20.2.19, port: 25;
nested exception is:
java.io.InterruptedIOException: Operation timed out: no further information
at com.wm.util.LocalizedException.(LocalizedException.java:95)
at com.wm.app.b2b.server.ServerException.(ServerException.java:30)
at com.wm.app.b2b.server.ServiceException.(ServiceException.java:24)
at pub.client.smtp(client.java:459)
at java.lang.reflect.Method.invoke(Native Method)
at com.wm.app.b2b.server.JavaService.baseInvoke(JavaService.java(Compiled Code))
at com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java(Compiled Code))
at com.wm.app.b2b.server.BaseService.invoke(BaseService.java(Compiled Code))
at com.wm.lang.flow.FlowInvoke.invoke(FlowInvoke.java(Compiled Code))
at com.wm.lang.flow.FlowState.invokeNode(FlowState.java(Compiled Code))
at com.wm.lang.flow.FlowState.invoke(FlowState.java(Compiled Code))
at com.wm.lang.flow.FlowState.invoke(FlowState.java(Compiled Code))
at wm.server.flow.stepFlow(flow.java:183)
at java.lang.reflect.Method.invoke(Native Method)
at com.wm.app.b2b.server.JavaService.baseInvoke(JavaService.java(Compiled Code))
at com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java(Compiled Code))
at com.wm.app.b2b.server.comm.DefaultServerRequestHandler.handleMessage(DefaultServerRequestHandler.java:64)
at com.wm.app.b2b.server.HTTPMessageHandler.process(HTTPMessageHandler.java:166)
at com.wm.app.b2b.server.HTTPDispatch.run(HTTPDispatch.java:457)
at com.wm.util.pool.PooledThread.run(PooledThread.java:103)
at java.lang.Thread.run(Thread.java:498)

How did you resolve?