Thanks Trevor. I did exactly that. I uncommented the code provided in the latest KonaKart distribution and added username and password like egreenplace suggested above. But the web site says that the email has been sent, and there are no logs being written out to specify a problem. I have been waiting but did not receive anything.
If you confirm that the text pasted above by egreenplace looks correct, then I can pursue other possibilities such as port blocking, etc. But I just want to make sure that I am not missing anything from the application stand point.
Thank you again,