scores exactly zero?

It seems highly improbable that a message would make it
through
SpamAssassin and have a score of exactly zero, with no rules
at all
tripped (positive or negative), so I think something must be
wrong.

This is a brand-new setup for my wife and me of 1.0.2 . I
have been
using 1.0.1 at work with a thousand times larger user base
without
seeing this.

I know I can turn on verbose logging in amavisd and possibly
diagnose
what is going on that way, and I'll do that if I have to,
but this is
such a striking thing that I'm hoping someone has seen it
before and can
save me some time.

In the ham cache, there are a dozen or so messages with
small positive
scores (but not enough to cause it to be classified as
spam), and then
the majority of the messages in my ham cache have a score of
0, and
looking at the messages in a window shows no SA rules at all
tripped.
All these messages really are non-spam, so the system is
filtering as it
should so far, but I'm concerned that something is probably
wrong that
will bite me eventually.

The messages in the spam cache look more normal, with scores
above 10
and a reasonable rule list.

--Greg


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On 1/24/07 6:22 PM, "Greg Woods" <woodsucar.edu> wrote:

> It seems highly improbable that a message would make it
through
> SpamAssassin and have a score of exactly zero, with no
rules at all
> tripped (positive or negative), so I think something
must be wrong.
> 
This happened to me recently too, because of a barrage of
Trojans. On some
of my accounts, 'Attachment Type Filtering' was Enabled and
Labeled. Make
sure your Mail with dangerous attachments are Quarantined. I
think labeled
messages are passed through without being filtered for
spam.

Craig.


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>It seems highly improbable that a message would make it
through
>SpamAssassin and have a score of exactly zero, with no
rules at all
>tripped (positive or negative), so I think something
must be wrong.
>
>This is a brand-new setup for my wife and me of 1.0.2 .
I have been
>using 1.0.1 at work with a thousand times larger user
base without
>seeing this.
>
>I know I can turn on verbose logging in amavisd and
possibly diagnose
>what is going on that way, and I'll do that if I have
to, but this is
>such a striking thing that I'm hoping someone has seen
it before and can
>save me some time.
>
>In the ham cache, there are a dozen or so messages with
small positive
>scores (but not enough to cause it to be classified as
spam), and then
>the majority of the messages in my ham cache have a
score of 0, and
>looking at the messages in a window shows no SA rules at
all tripped.
>All these messages really are non-spam, so the system is
filtering as it
>should so far, but I'm concerned that something is
probably wrong that
>will bite me eventually.
>
>The messages in the spam cache look more normal, with
scores above 10
>and a reasonable rule list.
>
>--Greg

I have seen this several times before on a new system. Bayes
has not learned 
enough to start feeding back yet and it's possible you are
actually not 
hitting any rules. Here is a simple test. Send a message
through with 
nothing in the subject - see if you get a hit for
MISSING_SUBJECT. If you 
do, it's probably circumstantial.

Gary V

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