On Tue, 27 Nov 2007, Mark wrote:
> Hmm, i'm just in the process of upgrading from 0.88.7 to 0.91.2
> (FreeBSD). "The difference in accuracy between what we were used to and
> the newer version was so large that it fundamentally changed the nature
> of the product," do you mean that in a bad way?

It depends on how you used it before.  If you'd used it as part of a
scoring system, then you just need to weight phishing hits less than
standard virus hits.

If you previously rejected/quarantined/dropped messages based solely on
whether they were positive hits, then you should turn off the
anti-phishing checks (or at least not act directly upon them).

The false positive rate for phishing is extremely high, relative to what
you're used to, and can't be reasonably used as a sole determinant of
deliverability.

In short, you can't use Clam as a simple binary good/bad test with the
anti-phishing stuff turned on.

Jeffrey Moskot
System Administrator
[EMAIL PROTECTED]
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