Re: [exim] Oddity in spam filtering: negative scores still p…

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Author: Derrick MacPherson
Date:  
To: John Robinson
CC: exim-users
Subject: Re: [exim] Oddity in spam filtering: negative scores still produce"possible spam" message in X-Spam-Report
is that not because it came from a trusted source? if you look at the
headers you'll see the reason why it scored negative, then you can look
up details, when i send myself an email from my server:

-1.4 ALL_TRUSTED            Passed through trusted hosts only via SMTP




On Fri, 2006-09-08 at 16:39 +0100, John Robinson wrote:
> Hi! I'm afraid this is a stupid newbie question, but I haven't found an
> answer elsewhere; apologies if I've not looked carefully enough.
>
> I've just installed a fresh system with CentOS 4, using
> exim-4.43-1.RHEL4.5.i386.rpm from CentOS and
> spamassassin-3.1.5-1.el4.rf.i386.rpm from rpmforge (also clamav-0.88.4
> but that's not the problem), and used pretty much the stock
> configuration, which follows most of the suggestions at
> http://www.timj.co.uk/linux/Exim-SpamAndVirusScanning.pdf , and I've
> added bits and pieces from the spec file and exim.org wiki. It's mostly
> working fine.
>
> The odd thing is, I'm getting the following in messages delivered on the
> box:
> X-Spam-Score: -1.4 (-)
> X-Spam-Report: Spam detection software, running on the system
>     "yuiop.plus.com", has identified this incoming email as possible
>     spam.  The original message has been attached to this so you can
>     view it (if it isn't spam) or label similar future email.  If
>     you have any questions, see the administrator of that system for
>     details.
>     Content preview:
> [etc]

>
> Now, clearly it's not spam. Checking the logs for what spamd thought shows:
>
> Sep 8 16:09:58 yuiop spamd[22421]: spamd: connection from
> yuiop.plus.com [127.0.0.1] at port 32814
> Sep 8 16:09:58 yuiop spamd[22421]: spamd: setuid to nobody succeeded
> Sep 8 16:09:58 yuiop spamd[22421]: spamd: checking message
> <450187D9.9090205@???> for nobody:99
> Sep 8 16:09:59 yuiop spamd[22421]: spamd: clean message (-1.4/5.0) for
> nobody:99 in 0.5 seconds, 2667 bytes.
> Sep 8 16:09:59 yuiop spamd[22421]: spamd: result: . -1 - ALL_TRUSTED
> scantime=0.5,size=2667,user=nobody,uid=99,required_score=5.0,rhost=yuiop.plus.com,raddr=127.0.0.1,rport=32814,mid=<450187D9.9090205@???>,autolearn=ham
>
> I'm running spamd with the options "-d -m3 --max-conn-per-child=25", and
> my local.cf specifies "required_hits 5".
>
> And for completeness, my main.log shows:
> 2006-09-08 16:09:59 1GLhzS-0003eZ-DF <= john.robinson@???
> H=([192.168.1.10]) [192.168.1.10] P=esmtpsa X=TLSv1:AES256-SHA:256
> A=plain:john S=4767 id=450187D9.9090205@???
> 2006-09-08 16:09:59 1GLhzS-0003eZ-DF => john
> john.robinson@???> R=localuser T=local_delivery
> 2006-09-08 16:09:59 1GLhzS-0003eZ-DF Completed
>
> I suspect I've missed something very simple; can anyone here help? I've
> attached my exim.conf; I hope the list etiquette tolerates this use of MIME.
>
> Cheers,
>
> John.
>
>
> --
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--
Derrick MacPherson <dmacpherson@???>