Re: [exim] Multiple spamd servers.

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Autor: Ian FREISLICH
Data:  
Para: Marc Perkel
CC: exim-users
Assunto: Re: [exim] Multiple spamd servers.
Marc Perkel wrote:
> Ian FREISLICH wrote:
> >I wonder if others share my frustration. I want to continue to
> >scan subtitted mail and make decisions based on the score. The
> >only trouble is that most of the users that use us to smart host
> >are on space that is RBLed into the darkest of RBL space and the
> >RBL scores are sufficient to make the scores over 7 in most cases.
>
> I don't know if this applies to you but I ignore spam assassin's one
> level spam flaffing and do something like this:


Well, that essentially translates the score into a description.

> >I'd like to be able to have multiple profiles. Two at the moment.
> >One for mail be delivered to us and another for mail being submitted
> >to us for smart hosting. I doubt what I will propose later will
> >scale beyond 5 or 6 profiles.
> >
> Just a thought. Let the ACL add a header that distinguishes the source.
> Then create a spam assassin rule that scores negative points for the
> source that you are trying to lower the score for.


The trouble here is that you land up subtracting a constant from
the total score, regardless of the rules that triggered. If a
submitted mail is clasified as spam, but doesn't hit the RBL rules,
it will compensate for the RBL rules score anyway and perhaps pass
the mail.

It turns out that I misread the SpamAssassin documentation and I
can in fact modify system rule scores from a user prefs file. (I've
been spoilt by the quality of exim's documentation.) So all I neede
to do was to setup a virtual config directory for SA with appropriate
scores in a user_prefs file and make the spam condition use a
different user for authenticate mail.

I still think the expanded spamd_servers option is worthwhile and
my boss thinks the current solution is a stop-gap so I might have
some time to do that anyway.

Ian

--
Ian Freislich