Hardening Postfix

While there are plenty of good (and not so good) anti-spam solutions available, most of them cost a bit of money in terms of purchasing and licensing fees. Even without a dedicated appliance, there are several ways you can harden the Postfix MTA against spam and other internet nasties. In this article, we’re going to […]

Migrating spamassassin from db files to MySQL

In this post, we’ll take a look at how to migrate spamassassin from the default db files to a MySQL database. The assumption is that you have a working mail server that already does spam scanning and where spamassassin stores its information in the default db files. In order to improve speed, especially for auto-expiry […]

How to use Postfix as a frontend for MS Exchange

This article explains how to use Postfix as a frontend for MS Exchange, with integrated spam filter and virus scnning. The base for this setup is openSUSE Linux 11.3., but it should work for most other distributions out there. It assumes you already have a running installation of Linux. We’ll be using postfix, amavisd-new, clamav […]