I've been experimenting with rules to catch "BIZ_WIZ" style email
addresses where it's a compound email address composed of related
parts, usually in grammatical order.  New spammers seem to adopt the
same basic formula from time-to-time, so it should be possible to
catch them too.  For example:

  stock.*advisor
  financial.*wizard
  otc.*journal
  etc.

I'm not sure which of these rules will be more effective in practice
(feel free to tweak), but here they are:

   /\@/ && /(biz|otc|stock|financ(e|ing|ial)|invest(or|ment)?|market)/ && 
/(advisor|journal|alert|wizard|player|offer)/

   /\@/ && 
/(stock|financial|otc|market|customer|business|special|alert).*(advisor|journal|info|player|service|offer|trade|biz)/

Here's the longer list of keywords that seem to work to some extent.
The count is how often they're found in combination with each other
(alone doesn't count), but I have a limited number of spam messages to
test.  I think the trick is in how well you combine them.  If you get
too aggressive, you start matching etrade messages, but I guess that's
where the scoring comes into play.  :-)

138     advisor
114     stock
112     info
79      journal
62      excite
50      financial
47      offer
46      otc
40      player
31      service
31      alert
29      market
20      customer
20      biz
19      business
18      special
17      trade
10      support
9       vacation
9       money
8       finance
7       investor
7       credit
5       account
4       travel
4       investment
3       merchant
2       payment
2       invest
1       wizard
1       success
1       savings
1       promotion
1       profit
1       commercial
1       commerce

- Dan

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