title: solr query to target mixed case string
body: <p>I have some email addresses stored that have incorrect formatting, they have mixed case in their domain, I need to be able to grab those resources out so that I can correct them. This is a special case to fix broken data, I need to pull back all resources with mixed case domains.</p>
  
  <p>I haven't the first clue on how to go about this query, nor whether it's even possible.</p>