"David F. Skoll" <dfs(_at_)roaringpenguin(_dot_)com> wrote:
Automatic filters will get you so far, maybe up to 90-98% accuracy,
depending on which filter you use and what your mail mix looks like.
Automatic filters only work if you're not receiving any significant
amount of spam.
If you're receiving 100K+ spams a day, then the machines to run the
filters cost a fair amount of money. Not everyone can afford to spend
$10K on a mailer instead of $2K, just to get legitimate mail through.
With the spam volume Chris Lewis is saying Nortel gets, I'd be
surprised if their infrastructure costs were less than $100K.
Large companies can afford that. Small ones can't.
Alan DeKok.
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