preload preload preload preload

Using Amavisd and Spamassassin to Block Spam

There will be times when you have you have your Postfix Mail Server set up and Spam is under control and all of a sudden you will see a new wave of Spam hit your site.  This article will help you see how you can make some small adjustments to cut down on new waves of Spam.  Here is an example of the new wave of Spam I started ...
0

Quarantine Spam with Amavisd

Amavisd-new acts as a connecting point between Spamassassin, Clamav and Postfix.  This is important to  remember because much of the configuration that would seem to be done on Spamassasin directly, actually occurs in the amavisd-new configuration file. When amavisd detects spam using Spamassassin it will log it to the log file and ...
0

Blackholes for Spam – Finding a Balance

Having tried a number of RBLs you will see that some are going out of existence, some are either too aggressive or just do not cover all of the areas that give you the protection you need.  Here is a list that makes a good combination of protection without getting too crazy.  Be sure to try one at a time so you can determine if one is ...
0

Set Up Virus and Spam Scanning on Ubuntu 8.10

Install of Amavisd-New on Ubuntu 8.10 One of the most frustrating problems with setting up any mail server is the configuration required for anti-virus protection and Spam checking.  Amavisd-new provides an excellent tool to help in setting that up.  This is a step-by-step process in providing your mail server, the example is Ubuntu ...
0

Stopping Non-English Spam

One way you may choose to manage the mail that comes to the Postfix server is to use the locales which is a part of Spamassassin.  If you cannot read other languages there is really no need to run them through your mail system.  So for example if you wanted to limit email to English you would edit the: /etc/mail/spamassassin/local.cf ok_locales             en This will treat any mail in character sets other than Western as spam. ...
0

Header Checks: Examples of What Not to Do

Listed here are a number of header checks that do work but they are ineffective for the most part.  Here is the problem.  When you look at these examples they have a Subject that you are searching for.  As a result you will be writing header checks until the day you die, not good.    My thinking is that you will want to discard ...
0