Index: mailhandler.retrieve.inc
===================================================================
--- mailhandler.retrieve.inc	(revision 619)
+++ mailhandler.retrieve.inc	(working copy)
@@ -330,6 +330,9 @@
   $tmp = array_slice($lines, $endcommands, $i - $endcommands);
   // flatten and assign the body to node object. note that filter() is called within node_save() [tested with blog post]
   $node->body = implode("\n", $tmp);
+  // Comment out Outlook-generated HTML
+  $node->body = preg_replace("/<style>\r\n(?!<\!--)/", "<style>\r<!--", $node->body);
+  $node->body = preg_replace("/(?<!-->)\r\n<\/style>/", "-->\r\n</style>", $node->body);
 
   if (empty($node->teaser)) $node->teaser = node_teaser($node->body);