Java EE (Java Enterprise Edition) General Discussion

My machine is on the DNS and does not require authentication to send e-mail. It also can send and recieve e-mail from the outside world with no problems; however this is the error I see in the logs:
2003-12-11 10:03:49,151 INFO org.dspace.app.webui.servlet.RegisterServlet @ anonymous:session_id=8E5A9C16A74EAA9F334FF566CB6714BF:error_emai$
javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
javax.mail.SendFailedException: 550 5.7.1 <test@test.com>... Relaying denied

at javax.mail.Transport.send0(Transport.java:219)
at javax.mail.Transport.send(Transport.java:81)
at org.dspace.core.Email.send(Email.java:259)
at org.dspace.eperson.AccountManager.sendEmail(AccountManager.java:291)
at org.dspace.eperson.AccountManager.sendInfo(AccountManager.java:251)
at org.dspace.eperson.AccountManager.sendRegistrationInfo(AccountManager.java:96)
at org.dspace.app.webui.servlet.RegisterServlet.processEnterEmail(RegisterServlet.java:272)
at org.dspace.app.webui.servlet.RegisterServlet.doDSPost(RegisterServlet.java:206)
at org.dspace.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServlet.java:153)
at org.dspace.app.webui.servlet.DSpaceServlet.doPost(DSpaceServlet.java:110)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)

Can someone tell me what I am doing wrong here?

Thanks.