Cannot read nodes containing an email address
I'm not sure why you're having trouble with the bundle condition, but as an alternative you could use a propertyCondition and query on the node type instead:

$query = new EntityFieldQuery();
$query-&gt;entityCondition('entity_type', 'node')
  -&gt;propertyCondition('type', 'my_content_type')
  -&gt;fieldCondition('field_user_email_address', "email", $email)
  -&gt;propertyCondition('status', 1);