This is a rather extensive article describing the configuration of a high performance Mail server for Small and Medium businesses, with a focus on security, mail retention and accessibility though IMAP and webmail.

The original article written for Fedora Core 4 is available as a single long page.

All articles below have being updated for Fedora Core 5

You can view the article as a single long page or as a series of smaller articles describing each steps to perform :

• Preparation : description of objectives, assumptions and installation
• Users : how users are configured
• Postfix : using Postfix as the Mail Transport Agent (MTA)
• Dovecot : using Dovecot for high performance POP/IMAP access
• AmavisdNew : setting up filtering
• SpamAssassin : filtering out spam
• SpamAssassinImproved : Improving spam filering
• ClamAV : setting up the automated antivirus system
• SquirrelMail : accessing email from the web
• Firewall : proper setup for your firewall
• SecureAccess : using SSL to encrypt email communications
• AlternateAccess : circumventing ports blocking by ISPs
• MboxMaildirMigration : migrating your old mailboxes to the new system
• TroubleShooting : a few tests and tips to help troubleshooting.
• AWStats : mail log analysis and statistics

Todo

• ConfigClients : how to configure mail clients such as Outlook or Thunderbird

I hope you will find these helpfull. Let me know if they helped or if you have any comments: or just leave your comments in the comment boxes at the bottom of each article.

Resources

You will find relevant resources in each article above. The following resources are more wide-ranging and are excellent articles to use as references.

• http://www.freespamfilter.org/
• How to install Postfix, Amavisd-new, SpamAssassin, Pyzor, Razor, DCC, and ClamAV on Fedora Core 4 - v2.1.1
• ISP-style Email Service with Debian-Sarge and Postfix 2.1
• List of email related IETF technologies and their implementations, such as SASL
• Postfix SMTP AUTH (and TLS) HOWTO
• Gmail on Home Linux Box using Postfix and Fetchmail (Using SASL and TLS)

History

• 2006-05-23 Added sections Firewall, SecureAccess and AlternateAccess.
• 2005-12-21 Fixed layout issues with the single long page version of this article.
• 2005-12-20 Added section on Baysian filtering in SpamAssassin
• 2005-12-02 Added SpamAssassinImproved
• 2005-07-22 Added AWStats
• 2005-07-14 Original version