> Had a piece of spam clogging up the admindb section because of a
> "%" in the Subject:

Hmm...  This was reported and fixed a while back.  

   http://www.python.org/pipermail/mailman-users/1999-April/001011.html
   http://www.python.org/pipermail/mailman-users/1999-April/001047.html

> This patch against 1.0rc2 fixed it

Did it fall out of the distribution, or get reintroduced?

Chris