SpamFirewall, Program to firewall mailservers that send too much spam to your mail server
Jason Jorgensen 
Version 1.2
09-16-2004

1. Introduction
2. Installation
3. Usage 
4. Copyright

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1. Introduction

I wanted a system to automatically block mail servers that send me too much spam.

This first version of the software is alittle hard coded. I want to make it more
modular with a client/server setup, plugins for different firewall systems, and
plugins for spam matching. At present however its geared toward postfix, iptables
and spamassassin.

Current Features:
- Automatically queues the IP addresses of mail servers and spammers from messages
    that match the spam rules.
- Automatically firewall those mailservers and spammers if they send enough spam
    to meet your desired threshold.
- Automatically removes IP addresses from the queue and from the blocked list
    after a specified expiration period.
- Each repeat offense from a spammer will increase the amount of time they are
    blocked. With good behavior the amount of time will decrease.

The latest version of spamfirewalll is available at http://www.innominatus.com

Sorry for the rough (anti-newbie) readme file.

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2. Installation

- Run spamfirewall.sql against your mysql server. Or the update sql patches.
- Modify spamfirewall and spamfirewallmaintenance to match your mysql users prefs, 
    spam thresholds, and expire times.
- Add spamfirewall to your MTAs filter script. An example filter.sh is included.
- Add spamfirewallmaintenance to cron.
   For example the following /etc/crontab line to run once an hour:
   09 */1 * * * root /usr/local/bin/spamfirewallmaintenance >/dev/null

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3. Usage 

Basically do nothing and enjoy less spam.

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4. Copyright

spamfirewall Copyright 2003 Jason Jorgensen, jasonj@innominatus.com 

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2 of the License, or (at your
option) any later version. 

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details. 

You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.