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Old 10-17-2006, 10:23 PM   #1
erosszz
LQ Newbie
 
Registered: Sep 2006
Location: Ibaraki-ken, Japan
Distribution: Red Hat 8.0
Posts: 14

Rep: Reputation: 0
I badly needed your help... spams experts


The reason why I need to use putty because I want to configure my Linux in my workstation then stop the spams. I recieve everyday around 15 to 20 spam emails.

Please help me again step by step because I dont have any idea on this matter. Thank you very much


-eros
Japan


These are the platforms:
Client: Windows XP SP2, Putty v0.58
Server: Red Hat 8.0 sendmail, mail was already setup by other people.
Additional Info:
They created the user by this way "adduser -g users /bin/false username"
I know that "/bin/false" was set to not allowing the user to connect remotely. I dont know on how to check if the user was /bin/false or /bin/true.

This is the sample full header of the spam email.

mail.sgp.com.ph is my previous domain.
modu.com.ph is my present domain.


Return-Path: <puk@lange-int.ch>
Received: from cpe-72-130-171-75.san.res.rr.com (cpe-72-130-171-75.san.res.rr.com [72.130.171.75])
by mail.sgp.com.ph (8.12.8/8.12.8) with SMTP id k9HLLZN5025022
for <every@modu.com.ph>; Wed, 18 Oct 2006 05:21:39 +0800
Received: (qmail 17472 invoked from network); Tue, 17 Oct 2006 14:21:49 -0700
Received: from unknown (HELO 72.130.91.218) (72.130.91.218)
by cpe-72-130-171-75.san.res.rr.com with SMTP; Tue, 17 Oct 2006 14:21:49 -0700
Message-ID: <453548FF.7000909@lange-int.ch>
Date: Tue, 17 Oct 2006 14:19:59 -0700
From: Nance Marshall <puk@lange-int.ch>
User-Agent: Thunderbird 1.0.2 (Windows/20050317)
MIME-Version: 1.0
To: every@modu.com.ph
Subject: decimate
Content-Type: multipart/related;
boundary="------------040605040106090509040904"
PGS-X-MailScanner: Found to be clean
Status:

Last edited by erosszz; 10-17-2006 at 10:25 PM.
 
Old 10-18-2006, 01:23 AM   #2
AwesomeMachine
Senior Member
 
Registered: Jan 2005
Location: USA and Italy
Distribution: Debian testing/sid; OpenSuSE; Fedora; Mint
Posts: 2,570

Rep: Reputation: 454Reputation: 454Reputation: 454Reputation: 454Reputation: 454
Place a filter on the sendmail program disallowing

every@

in the

To:

field of all incoming email. Have an autoreply message that bounces the spam back where it came from.
 
Old 10-18-2006, 05:09 AM   #3
billymayday
LQ Guru
 
Registered: Mar 2006
Location: Sydney, Australia
Distribution: Fedora, CentOS, OpenSuse, Slack, Gentoo, Debian, Arch, PCBSD
Posts: 6,678

Rep: Reputation: 122Reputation: 122
Or set up spamassassin or similar on the mail server

Is every your username? if not, make sure sendmail reject mail to unknown users
 
Old 10-25-2006, 02:56 AM   #4
erosszz
LQ Newbie
 
Registered: Sep 2006
Location: Ibaraki-ken, Japan
Distribution: Red Hat 8.0
Posts: 14

Original Poster
Rep: Reputation: 0
every@modu.com.ph is the email account for everyone. So therefore, I need to recieve the incoming email containing every@ in To: field.

The spam sends also in our individual account (e.g. eros.sy@modu.com.ph).

I would like to use spamassassin but I was afraid to install because I do not have any support. Please teach me to setup spamassassin step by step because I am almost a month of using Linux (Red Hat 8.0 sendmail).
 
  


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