[Mailman-Users] Uncaught runner exception: unknown encoding: us-ascii

[rpyne at kinfolk.org]

Please help! Since upgrading to Mailman 2.1.12 and Python 2.6.1, my 
error log is filling up with messages like this and virtually no 
messages are moving through my mailing lists. Based on a search of 
the archives, I removed ALL digest.mbox files and ran unshunt. No 
messages moved and the errors continue.

Mar 02 09:51:11 2009 (30278) SHUNTING: 
1236010837.317246+dbe24d8d98f7ad6b16fdd98b1f18ae69b6a225e7
Mar 02 09:51:11 2009 (30278) Uncaught runner exception: unknown 
encoding: us-ascii
Mar 02 09:51:11 2009 (30278) Traceback (most recent call last):
  File "/var/mailman/Mailman/Queue/Runner.py", line 120, in _oneloop
    self._onefile(msg, msgdata)
  File "/var/mailman/Mailman/Queue/Runner.py", line 191, in _onefile
    keepqueued = self._dispose(mlist, msg, msgdata)
  File "/var/mailman/Mailman/Queue/IncomingRunner.py", line 130, in 
_dispose
    more = self._dopipeline(mlist, msg, msgdata, pipeline)
  File "/var/mailman/Mailman/Queue/IncomingRunner.py", line 153, in 
_dopipeline
    sys.modules[modname].process(mlist, msg, msgdata)
  File "/var/mailman/Mailman/Handlers/SpamDetect.py", line 111, in 
process
    g.flatten(p)
  File "/usr/lib/python2.5/email/generator.py", line 84, in flatten
  File "/usr/lib/python2.5/email/generator.py", line 116, in _write
  File "/var/mailman/Mailman/Handlers/SpamDetect.py", line 84, in 
_write_headers
    Generator._write_headers(self, msg)
  File "/usr/lib/python2.5/email/generator.py", line 150, in 
_write_headers
  File "/usr/lib/python2.5/email/generator.py", line 26, in 
_is8bitstring
LookupError: unknown encoding: us-ascii