This page will show you how to setup a mail server with antispam and antivirus capabilities and can be integrated into Active Directory.
How to install Linux
You can use either Red Hat Enterprise Linux 4 or CentOS 4. This guide will also work with CentOS 4.1, 4.2, 4.3, 4.4 and 4.5. RHEL 4 can be purchased from Red Hat and comes with support. CentOS 4 on the other hand can be downloaded here.
To simplify our administration tasks, log in as the user root and specify your root password. This is not the recommended way of administering a Linux box, but for the tasks at hand it is the most efficient way.
How to install SMTP, POP3, IMAP and WebMail service
These are the standard mail services and the guides below will show you how to install them.
How to create mailboxes, aliases and distribution groups
How to add antivirus and antispam filtering
These are great add-ons that will benefit your mail users.
You can greatly reduce the volume of spam and viruses reaching your mail server if you are willing to give up something. If you are willing to have your mail delayed (time), install Postgrey. If you are willing to spend (money), get the Barracuda Spam Firewall.
Before deploying your new mail server, see Mail Server Checklist to ensure your new mail server will have a good sending reputation and can be trusted.
How to integrate Active Directory
Integrating Active Directory into your mail server will turn your Linux email server into a lean and mean Exchange like server.
Visit the forum to ask for help or to give a comment.