[Mailman-Users] X-Spam-Score: 22.4 and still sent out to the list...

[James Nightly]

How can I configure mailman on Debian to reject messages with
X-Spam-Score over 8? We are getting bombarded with spam, messages are
tagged by Spamassasin, but for some reason Exim4 still sends these to
Mailman.

Debian 8 (Jessie)
Exim version 4.84
Mailman 1:2.1.18-2
SpamAssassin version 3.4.0, running on Perl version 5.20.2