Global Manual Whitelist Once you have set up Spamassassin so it is working and you have run it for some time you may want to tune it to provide automatic whitelists and blacklists.  The whitelist will provide a way to insure that the mail from a particular source will never get rejected.  This may be important clients, users on the system or messages from servers that do not necessarily have the right credentials for sending mail. Your company may have ...

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 ...

Install Amavisd-New on CentOS 5 Amavisd-new  isn't in the CentOS repositories, so the first thing you'll need to do is to install the Dag Wieers/RPMForge repository into your YUM configuration.  First, go to the Dag Wieers/RPMForge website. http://dag.wieers.com/rpm/FAQ.php#B Copy and paste the appropriate command for your Red ...

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 ...

SpamAssassin will use tests to check mail headers, the body, IP Addresses and checksums to locate patterns that indicate SPAM.  So SpamAssassin will use pattern-based scores for checking patters that are found in headers, the body or attachments and it will use network-based tests that use DNS lookups or access RBL lists. If you look in the /usr/share/spamassassin directory you will see a list of the tests that are performed by SpamAssassin. The ...

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. ...