The <code>qrunner</code> cronjob was failing:
<pre>
Your "cron" job on andrews.EECS.Berkeley.EDU
/usr/local/bin/python /home/mailman_5/cron/qrunner

produced the following output:

/home/mailman_5/cron/qrunner:0: SyntaxWarning: name '_listcache' is assigned to before global declaration

</pre>

The fix is below:
<pre>
andrews.EECS.Berkeley.EDU:root: %C2> diff -c ../../mailman_2/cron/qrunner .
*** ../../mailman_2/cron/qrunner        Thu Aug 18 14:43:30 2005
--- ./qrunner   Wed Nov  3 19:01:17 2010
***************
*** 165,172 ****


  ^L
! #_listcache = {}
  def open_list(listname):
      mlist = _listcache.get(listname)
      if not mlist:
          try:
--- 165,173 ----


  ^L
! _listcache = {}
  def open_list(listname):
+     global _listcache
      mlist = _listcache.get(listname)
      if not mlist:
          try:
***************
*** 186,194 ****

  ^L
  def main(lock):
-     global _listcache
-     _listcache = {}
-
      t0 = time.time()
      msgcount = 0
      allkids = {}
--- 187,192 ----
andrews.EECS.Berkeley.EDU:root: %C2> 
</pre>