Setup a very simple InfoPath 2010 form and published it to a Forms Library in SharePoint 2010. I've got the form configured with a simple email submission behavior to send it to myself. When I hit submit, the form displays an error. When I view the SharePoint ULS logs, I see that the following:
Data adapter failure during submit: The mail server is not correctly configured.
I've confirmed I can setup and get alerts (for example on a Document Library). Is there other configuration necessary to submit using the email submit behavior? Maybe any known bugs (I am running SP2010 + SP1 + Dec 2011 CU).