Something happend to my mailman installation. When ever any of the lists on the server get mail the error below is logged and the files are shunted off.

I've updated cpanel, I've run /scripts/fixmailman, I've started and stopped mailman, and checked that the mailman qrunners are up ... but nothing.

Any ideas as to what might be able to fix this problem?


Code:
Dec 08 04:10:52 2006 (7263) Uncaught runner exception: cannot import name typed_subpart_iterator
Dec 08 04:10:52 2006 (7263) Traceback (most recent call last):
  File "/usr/local/cpanel/3rdparty/mailman/Mailman/Queue/Runner.py", line 112, in _oneloop
    self._onefile(msg, msgdata)
  File "/usr/local/cpanel/3rdparty/mailman/Mailman/Queue/Runner.py", line 170, in _onefile
    keepqueued = self._dispose(mlist, msg, msgdata)
  File "/usr/local/cpanel/3rdparty/mailman/Mailman/Queue/IncomingRunner.py", line 130, in _dispose
    more = self._dopipeline(mlist, msg, msgdata, pipeline)
  File "/usr/local/cpanel/3rdparty/mailman/Mailman/Queue/IncomingRunner.py", line 150, in _dopipeline
    __import__(modname)
  File "/usr/local/cpanel/3rdparty/mailman/Mailman/Handlers/Approve.py", line 28, in ?
    from email.Iterators import typed_subpart_iterator
ImportError: cannot import name typed_subpart_iterator

Dec 08 04:10:52 2006 (7263) SHUNTING: 1165569052.6752191+ef5e0cac8ade7e850a70e51576ff38d8dbd843bc