KeyError in "virgin" runner.

Original LP Author: Stephen A. Goss , LP Link: https://bugs.launchpad.net/bugs/827547

Not sure what caused this error that showed up in mailman.log:

Aug 16 10:54:50 2011 (31400) Uncaught runner exception: u'foo.example.com' Aug 16 10:54:50 2011 (31400) Traceback (most recent call last): File "/home/sgoss/mailman_clone/src/mailman/core/runner.py", line 138, in _one_iteration self._process_one_file(msg, msgdata) File "/home/sgoss/mailman_clone/src/mailman/core/runner.py", line 220, in _process_one_file keepqueued = self._dispose(mlist, msg, msgdata) File "/home/sgoss/mailman_clone/src/mailman/runners/virgin.py", line 37, in _dispose process(mlist, msg, msgdata, 'virgin') File "/home/sgoss/mailman_clone/src/mailman/core/pipelines.py", line 50, in process handler.process(mlist, msg, msgdata) File "/home/sgoss/mailman_clone/src/mailman/pipeline/cook_headers.py", line 360, in process process(mlist, msg, msgdata) File "/home/sgoss/mailman_clone/src/mailman/pipeline/cook_headers.py", line 202, in process listinfo = mlist.script_url('listinfo') File "/home/sgoss/mailman_clone/src/mailman/model/mailinglist.py", line 243, in script_url return urljoin(self.domain.base_url, target + '/' + self.fqdn_listname) File "/home/sgoss/mailman_clone/src/mailman/model/mailinglist.py", line 227, in domain return getUtility(IDomainManager)[self.mail_host] File "/home/sgoss/mailman_clone/src/mailman/model/domain.py", line 142, in getitem raise KeyError(email_host) KeyError: u'foo.example.com'