Re: Cygwin lists spam filters

[Corinna Vinschen <vinschen@redhat.com>]

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Hi Frank,

On Sep  3 08:05, Frank Ch. Eigler wrote:
> Hi -
> 
> > There are no directions in the bounce.
> 
> Right, in this case the message was rejected upon receipt by sourceware,
> so the bounce message was generated from his MTA, not sourceware.
> 
> > I copied an example of this bounce to sourceware.org:~/corinna/Message01.eml
> > 
> > What was the problem with this mail, if it wasn't the raw email address
> > in the sig?
> 
> /var/log/maillog says:
> 
> Aug 30 17:14:51 sourceware spamd[28769]: spamd: checking message <102829035.20140830211503@mail.ru> for qpsmtpd:89
> Aug 30 17:14:53 sourceware spamd[28769]: spamd: identified spam (11.3/5.0) for qpsmtpd:89 in 2.4 seconds, 2121 bytes.
> Aug 30 17:14:53 sourceware spamd[28769]: spamd: result: Y 11 - AWL,BAYES_60,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPAM_BODY,SPF_PASS,UNSUBSCRIBE_BODY scantime=2.4,size=2121,user=qpsmtpd,uid=89,required_score=5.0,rhost=localhost,raddr=127.0.0.1,rport=/var/run/spamd,mid=<102829035.20140830211503@mail.ru>,bayes=0.659891,autolearn=spam
> 
> % spamassassin -t < $MESSAGE_FILE

Erm... was that the entire message file, including the bounce message
from his mail server?  If so, you should probably rerun this with
only the original message part, which is part of the file I uploaded
to ~/corinna/Message01.eml.

> gives more info (but the bayes state has changed since Aug. 30):
> 
> Content analysis details:   (32.0 points, 5.0 required)
> 
>  pts rule name              description
> ---- ---------------------- --------------------------------------------------
>  2.0 UNSUBSCRIBE_BODY       BODY: UNSUBSCRIBE_BODY

Adding the unsubscribe footer was invented for the cygwin-announce
mailing list many many years ago.  We actually asked our maintainers
to add it.  And here spamassassin turns that against them :}

>  6.5 GARBLED_SUBJECT        GARBLED_SUBJECT
>  1.5 GARBLED_FROM           GARBLED_FROM
> -0.0 NO_RELAYS              Informational: message was not relayed via SMTP

This ^^^^^^^^^ is only in the bounce message, not in the copy of the
original message.

>  6.5 GARBLED_BODY           BODY: GARBLED_BODY
>   10 SPAM_BODY              BODY: SPAM_BODY
>  2.0 BAYES_80               BODY: Bayes spam probability is 80 to 95%
>                             [score: 0.9277]
>  1.5 BODY_8BITS             BODY: Body includes 8 consecutive 8-bit characters

This is a weird rule.  So if somebody uses UTF-8 and, say, cyrillic
characters in the SIG, it gets 2 extra score points.  Wow.  This is
kind of unfriendly to non-latin language users...

>  2.0 DSN_NO_MIMEVERSION     Return-Path <> and no MIME-Version: header
> 
> 
> > Btw., Yesterday I sent this mail with the message text inlined, then
> > an hour later with the message text attached.  Both of my mails to
> > overseers simply disappeared, without even a bounce.
> 
> If you have the message-id, I could investigate.  (Which "this"?)

This in the sense of, I tried to send this here message you've just
replied to, first with inline, then with attached bounce message to
overseers.  The message ids are

  20140902185845.GA16455@calimero.vinschen.de
  20140902201727.GH6056@calimero.vinschen.de


Thanks,
Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
Red Hat

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