if you have configured a SMTP-server on your localhost it should work, however I think you have forgotten to configure it. If you're using JBOSS, you will find a mail-configuration xml file in the deploy directory. If it's another app-server you need to look at the docs and configure it.
Another option is to configure the email server in components.xml. The SEAM docs and Seam In Action (Manning) explain that in detail.
you're quite right. I've really done nothing to configure a SMTP-server. Thought the example should start to work without any extra efforts.
I'll look up the Manning book.
Thank you for a guideline.