spamicity question

[Brian Minton]

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I recently got a spam (one that I have been getting for quite a
while, and bogofilter has been successfully blocking) in my
inbox.  This struck me as strange, so I looked at the headers,
and found this header :
 
X-Bogosity: No, tests=bogofilter, spamicity=0.938724, version=0.11.1

So my question is this.  How can a message have that high of
spamicity and not be counted as spam?  I am pretty sure my normal
cutoff is about 0.53

- -- 
Brian Minton
brian at minton dot name	http://brian.minton.name
key fingerprint 81BE 3A84 A502 ABDD B2CC 4BFD 7227 8820 5703 7472
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