Back to spam

[Geoff Soper <ge...@alphaworks.co.uk>]

After a couple of years without being greatly troubled by spam (a few a 
week), about a fortnight ago I started seeing 10-20 a day. They have a 
similar look and tone but I can't see any obvious ways to get them with 
rules.

My trouble is that while all has been well, I've forgotten how SA works!

I want to start by checking that my installation of SA is working as 
well as possible. I started by getting my host to upgrade it to 3.3.2. 
Next, I want to check that sa-update is working and that my rules are 
up-to-date. I can see that I have the entries on the root crontab:

40      *       *       *       *       sa-update --gpgkey 6C6191E3 --channel sought.rules.yerp.org
43      2       *       *       *       sa-update --gpgkey 856AA88A --channel 90_2tld.cf.sare.sa-update.dostech.net --channel updates.spamassassin.org

How can I check what rules and / or rulesets are actually being used by SA?

Are there any other generic rules that it's recommended that I should 
subscribe to?

Also, I'm a bit confused about config files. I seem to have two, one at 
/etc/mail/spamassassin/local.cf and one at 
/usr/share/spamassassin/local.cf . What's the difference between the two 
and which one takes precedence?

Thanks in anticipation!