Sendmail

Spam and Virus Filtering (Con't)

Step 6: Auto-Update your Virus Definitions

You should update your virus definitions daily.  Run the update manually from the command prompt and then Create a new script in /etc/cron.daily:

freshclam
touch /etc/cron.daily/virus-update
chmod 755  /etc/cron.daily/virus-update

Edit /etc/cron.daily/virus-update to contain:

freshclam > /dev/nul

Step 7: Create a Spamassassin Shared User

We are going to build a sitewide spam filtering server.  There will be one database that performs the filtering. It is not as efficient as each user having their own database, but it is more practical.

adduser sharedspam
mkdir /home/sharedspam/.spamassassin/
chmod 755 /home/sharedspam
chmod 777 /home/sharedspam/.spamassassin/
touch /home/sharedspam/.spamassassin/user_prefs
chmod 644 /home/sharedspam/.spamassassin/user_prefs
touch /home/sharedspam/.spamassassin/auto-whitelist
chmod 666 /home/sharedspam/.spamassassin/auto-whitelist

Spam Configuration - Part 3 ->

References:

Sample Sendmail configuration file

Spam proof and Virus Filtering e-mail server -
http://www.centos.org/modules/newbb/viewtopic.php?topic_id=4938

Centralized Spam Filtering:
http://www.stearns.org/doc/spamassassin-setup.current.html#sitewide

Spam Assassin Configurator:
http://www.yrex.com/spam/spamconfig.php

Article last reviewed: 12/29/2006

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