user_prefs: "required_hits" is working but "rewrite_subject" isn't ?

Hi, I have the following user_prefs: required_hits 5.4 rewrite_subject 1 subject_tag*SPAM* report_safe 0 use_terse_report0 use_bayes 1 auto_learn 1 When I change the required_hits, I can see it working as shown by

Mail::audit & mail::spamassassin is SLOW - not using spamd ?

Hi, I want to use spamassassin through an Exim router pipe to a Mail:Audit perl script. It's all working very effectively and i'm impressed by SA's accuracy, but it's incredibly slow and grinds my server to a halt when activated. It's on FreeBSD 5.2.1. I'm not too sure how to make use of the spam