[Openchrome-users] [OT] Spam problem

[Forest Bond]

Hi,

I've gone and assumed that you're still interested in talking about my SPAM
filter :)

On Mon, Jan 14, 2008 at 11:59:40AM -0500, Forest Bond wrote:
> On Mon, Jan 14, 2008 at 04:39:12PM +0000, John Robinson wrote:
> >>> Content analysis details:   (1.9 points, 1.0 required)
> >>>
> >>>  pts rule name              description
> >>> ---- ---------------------- 
> >>> --------------------------------------------------
> >>>  0.0 FH_HOST_EQ_VERIZON_P   Host is pool-.+verizon.net
> >>>  0.9 RCVD_IN_PBL            RBL: Received via a relay in Spamhaus PBL
> >>>                             [71.169.171.209 listed in zen.spamhaus.org]
> >>>  0.9 RCVD_IN_SORBS_DUL      RBL: SORBS: sent directly from dynamic IP 
> >>> address
> >>>                             [71.169.171.209 listed in dnsbl.sorbs.net]
> >>>  0.0 BAYES_50               BODY: Bayesian spam probability is 40 to 60%
> >>>                             [score: 0.4925]
> >>>  0.1 RDNS_DYNAMIC           Delivered to trusted network by host with
> >>>                             dynamic-looking rDNS
> >
> > Forest, that IP address appears appears only in emails sent by you, I think 
> > it's your own one. You're connecting by authenticated SMTP to a server at 
> > webfaction.com, which is fine; my spamassassin doesn't count against you 
> > for this, so I suspect some server on the return leg between the 
> > openchrome.org list server and you is adding its Received: header in the 
> > wrong place, or your spamassassin is just getting it wrong.
> 
> Right you are.  Sorry about that.
> 
> I use fetchmail.  By default, it delivers mail via SMTP on the local system.  As
> a result, my SMTP server is adding a header.  I'm telling fetchmail to use
> sendmail directly now.  That should fix things.

Actually, what's especially interesting about this is that the primary
implication of this misconfiguration is that all incoming mail starts with a
score of 1.9 due to my delivery setup.  So, effectively, my threshold has
actually been -0.9!

(1.0 - 1.9 = -0.9)

-Forest
-- 
Forest Bond
http://www.alittletooquiet.net
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