Email is discarded when the subject is in Unicode (Chinese)

[Gamelover9001]

If you send an email with the subject in unicode (e.g.,
Chinese) to a mailing list, the email will be discarded.
The Mailman does not give any information to the
sender. So both senders and recipients will not know
anything about what is going on about the email. This is
a bug for 2.1.5. I am not sure if the bug is still there for
2.1.6.

[http://sourceforge.net/tracker/index.php?func=detail&aid=1257306&group_id=103&atid=100103]