Unexpected whitelisting behaviour

Quentin Campbell Q.G.Campbell at NEWCASTLE.AC.UK
Thu Dec 11 14:34:23 GMT 2003

>-----Original Message-----
>From: Julian Field [mailto:mailscanner at ECS.SOTON.AC.UK] 
>Sent: 11 December 2003 13:48
>Subject: Re: Unexpected whitelisting behaviour

I said that: 

>>However I noticed that the message headers did not contain the usual
>>  X-Newcastle-MailScanner-SpamScore: ss...
and Julian replied:

That will only happen if MS thinks it is spam.



At the cost of sounding a little dense could I ask you to please explain
what you mean by that statement? Surely MS only thinks a message is
"spam" if the spam score exceeds the SA threshold, currently 5.0 at this
site, or the sender is in one of the RBL sites specified in the MS
config file?

Why, then, do I see most messages that have a spam score less than 5
(ie. Not spam) showing a "X-Newcastle-MailScanner-SpamScore:" header
with 1 to 4 "s" characters?

Are you saying that the message in question must have had a spam score
less than or equal to zero or less than the -2.0 used by the Bayes
auto-learn as the "ham" threshold?

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