Sent a message from the test account to admin, it is stored in the database and available in the outbox. So it works fine.
When you are calling Joomla, do you have cookies enabled? Do you use and blocker, filter etc? Maybe something is filtered on your system (e.g. a plugin in your web browser), so the html form is not submitted correctly?
uddeIM & uddePF Development
CB Language Workgroup
CB 3rd Party Developer