In the XML tab in LiveCycle, could you do a search for the "bad" email address and replace each instance with the "good" address?  This worked for me when I was having a similar problem with the "Submit by E-mail" button that appears by default in Adobe after you've "distributed" a LiveCycle form vi...

I've created a couple of dynamic forms in LiveCycle ES2 that will be  completed by users who all have Reader 8.2.2.  I have Adobe Acrobat Pro  X, and am the only person on my team with anything other than Reader  8.2.2.  We wanted to be able to use one of the various submit features to route  and t...