Getting Past SpamAssassin

Martin Hepworth maxsec at
Mon Oct 4 19:41:39 IST 2010


try putting in the additional headers for spamassassin in the mails, then
you'll know what spamassassin actually said about the email as as far as
MailScanner was concerned. Make the following changes to the settings in

Spam Score Number Format = %5.2f

Detailed Spam Report = yes

Include Scores In SpamAssassin Report = yes

Always Include SpamAssassin Report = yes

Spam Score Number Format = %5.2f

Also the "X-Spam-Status:No" headers isn't anything do with MailScanner
unless you're trusting this header which is perhaps a bad thing.

Martin Hepworth
Oxford, UK

On 4 October 2010 18:03, Peter Ong < at> wrote:

> Dear MailScanner Gods,
> MailScanner: 4.79.11
> spamassassin-3.2.5-1.el5
> Please hear my prayers. Here's the weirdest thing...
> Under what circumstance could an email come through without passing through
> SpamAssassin? My configuration is as close to vanilla as possible. There
> have been no esoteric changes.
> A piece of spam came through this morning. It does not appear to have been
> scanned by SpamAssassin. Just to test, I scanned it as root. It scored a
> whopping 25.5 points. Then, I thought, maybe MailScanner runs spamassassin
> as postfix. So I scanned the same email as postfix, and spamassassin gave it
> a 32 points. Either way this should've been obliterated, but it shows:
> X-Spam-Status: No
> X-DTi-MailScanner-From: myemail at
> X-DTi-MailScanner: Found to be clean
> X-DTi-MailScanner-ID: 7BB9B1908B1.AB3F2
> X-DTi-MailScanner-Information: Please contact the ISP for more information
> X-Greylist: delayed 303 seconds by postgrey-1.32 at mygateway.tld; Mon, 04
> Oct 2010 06:22:01 UTC
> Received: from (unknown [])
>        by (Postfix) with ESMTP id 7BB9B1908B1
>        for <myemail at>; Mon,  4 Oct 2010 06:22:01 +0000 (UTC)
> At first, I thought this was the reason:
> Max SpamAssassin Size = 200k
> But the message was only 4K. Therefore, it is something else.
> Running spamassassin as postfix, I got these:
> [26774] warn: config: cannot write to
> /var/spool/postfix/.spamassassin/user_prefs: No such file or directory
> [26774] warn: config: failed to create default user preference file
> /var/spool/postfix/.spamassassin/user_prefs
> Could these have something to do with my problem? Under what circumstance
> could an email come through without passing through SpamAssassin?
> Thanks.
> p
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