I have implemented site wide SA and it works pretty well except for this
kind of spam.
postmaster account has been receiving many spam and its not being
blocked by SA, I have feed SA to learns hundred of similar spam
manually, but still not able to catcth up.
spamassassin --lint -D
...
[26113] dbg: bayes: corpus size: nspam = 31488, nham = 6671
----
*X-Spam-Status:* No, score=3.8 required=5.2 tests=BAYES_99,FORGED_RCVD_HELO,
HTML_50_60,HTML_MESSAGE autolearn=disabled version=3.1.4
---
Content-Transfer-Encoding: quoted-printable
=20
CAjRTIER
TIjFFANY & CO
BVjLGARI
OMjEGA
ROjLEX
PAjTEK
BRjEITLING
=20
---
