multiple addresses

Hi there,

I am running postfix 2.0.16 on a NetBSD machine with Mutt and Fetchmail. I
wonder how I could eliminate spam mail with multiple addresses under
To: or/and CC:

Many thanks

hk

Example:


From lfrxpo@cnnic.net.cn Sun Jan 25 11:56:29 2004
Return-Path: <lfrxpo@cnnic.net.cn>

snip....

Received: from 68.163.176.162 (HELO pool-68-163-176-162.bos.east.verizon.net)
by mta113.mail.ukl.------.com with SMTP; Sat, 24 Jan 2004 20:28:16 +0000
Received: from [68.163.176.162] by e-hostzz.comIP with HTTP;
Sat, 24 Jan 2004 03:24:13 -0500
From: "Tammy Lim" <lfrxpo@cnnic.net.cn>

To: ooruwari@------.uk, ot34@------.uk

Cc: otylihiousdivalola@------.uk, otinij@------.uk,
orn2001@------.uk, ormrod@------.uk, kartoem@------.uk,
osama_malki@------.uk, ones@------.uk, oosterk@------.uk


Subject: Re: DQWGGAOU, against the polonaise
Mime-Version: 1.0
X-Mailer: mPOP Web-Mail 2.19
X-Originating-IP: [3002hosting.comIP]


--
hk
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hk wrote:

> Hi there,
>
> I am running postfix 2.0.16 on a NetBSD machine with Mutt and Fetchmail. I
> wonder how I could eliminate spam mail with multiple addresses under
> To: or/and CC:
>
Well generally it's unimportant if there are any CCs named. So if I was
you I'd test spamassassin (www.spamassassin.org). It's a damn good
filter based on perl. I'm actually run it on three servers and it
catches... well... I think round about 95% spam.

On 2004-01-26, Torsten Stauder <audio07@t-online.de> wrote:
> hk wrote:
>
>> Hi there,
>>
>> I am running postfix 2.0.16 on a NetBSD machine with Mutt and Fetchmail. I
>> wonder how I could eliminate spam mail with multiple addresses under
>> To: or/and CC:
>>
> Well generally it's unimportant if there are any CCs named. So if I was
> you I'd test spamassassin (www.spamassassin.org). It's a damn good
> filter based on perl. I'm actually run it on three servers and it
> catches... well... I think round about 95% spam.
>


Hi Torsten,

Thank you for your advice. I installed spamassassin with the help of the
following information obtained from a spamassassin-postfix Howto. I am very
impressed.

*************


7. In /etc/postfix/master.cf in the "Services" section, alter the 'smtp'
line as follows (the " -o con..." SHOULD be on the next line:

#
---------------------------------------------------------------------------
smtp inet n - n - - smtpd
-o content_filter=spamfilter:
#
----------------------------------------------------------------------------

8. In /etc/postfix/master.cf in the "Interfaces to non-Postfix software"
section add:

#
-----------------------------------------------------------------------
spamfilter unix - n n - - pipe
flags=Rq user=spamfilter argv=/usr/bin/postfixfilter -f ${sender}
-- ${recipient}
#

-------------------------------------------------------------------------

#!/usr/pkg/bin/bash
/usr/pkg/bin/spamc | /usr/sbin/sendmail -i "$@"
exit $?


--
hk
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