When selecting the "forward to" option (and leaving it otherwise deferred) I get this:

Traceback (most recent call last): File "/home/mailman/scripts/driver", line 82, in run_main main() File "/home/mailman/Mailman/Cgi/admindb.py", line 159, in main process_form(mlist, doc, cgidata) File "/home/mailman/Mailman/Cgi/admindb.py", line 644, in process_form forward, forwardaddr) File "/home/mailman/Mailman/ListAdmin.py", line 175, in HandleRequest forward, addr) File "/home/mailman/Mailman/ListAdmin.py", line 311, in __handlepost copy, lang) File "/home/mailman/Mailman/Message.py", line 158, in __init__ self.set_payload(text, charset) File "/home/mailman/pythonlib/email/Message.py", line 160, in set_payload self.set_charset(charset) File "/home/mailman/pythonlib/email/Message.py", line 198, in set_charset cte(self) File "/home/mailman/pythonlib/email/Encoders.py", line 75, in encode_7or8bit orig.encode('ascii') AttributeError: Message instance has no attribute 'encode'

This was a fairly large note with a mime attachment.