InfoPath Dev

I have a repeating table where one column of information contains email addresses. What is the best way to grab those email addresses so that I can send them out in an SPD workflow? it seems that the repeating table wants to concantinate the whole row, but I just need to the column at this point.

I have a rule that I have created that grabs more detailed user information once a name has been provided to the people picker control. The problem is when a bad name is provided to the people picker. It gives the typical error 5566 and then the query pulls the submitters data instead. How do I tell the rule not to run (i.e. don't query data) ...