Random spamassassin rules. They're a subset of those I use for work. They may not work for you or do anything useful.
They (should) all have a PP_ prefix ...
Copy rules/* to /etc/spamassassin ... there are probably better ways but this works for me.
Restart SpamAssassin if necessary.
cd rules ; spamassassin --lint -L -t -C .
cp rules/* /etc/spamassassin/
cat /path/to/some/email.txt | spamassassin -tL ```
or
spamassassin -tLD < /path/to/some/email.txt 2>&1 | grep PP_