=== modified file 'Mailman/Handlers/Approve.py'
--- Mailman/Handlers/Approve.py	2010-04-09 20:17:07 +0000
+++ Mailman/Handlers/Approve.py	2010-05-08 21:40:38 +0000
@@ -111,7 +111,7 @@
             # line of HTML or other fancy text may include additional message
             # text.  This pattern works with HTML.  It may not work with rtf
             # or whatever else is possible.
-            pattern = name + ':(\s| )*' + re.escape(passwd)
+            pattern = name + ':(\xA0|\s| )*' + re.escape(passwd)
             for part in typed_subpart_iterator(msg, 'text'):
                 if part is not None and part.get_payload() is not None:
                     lines = part.get_payload(decode=True)