[Peter]

you have to put your host name
I'll give you an example

Code:

  SimpleEmail email = new SimpleEmail();
  email.setHostName("mail.myserver.com");
  email.addTo("jdoe@somewhere.org", "John Doe");
  email.setFrom("me@apache.org", "Me");
  email.setSubject("Test message");
  email.setMsg("This is a simple test of commons-email");
  email.send();