THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
SpamFu Proxy
It is a free and opensource (at least Lite version) Windows SpamAssassin Pop3 proxy, currently working with SpamAssassin 3.0.2
...
Seem to be positive as per http://sourceforge.net/mailarchive/forum.php?forum=spamassassin-saproxy