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This tutorial shows how to set up Zimbra Collaboration Suite - Open Source Edition on CentOS. This tutorial covers installation of CentOS, dependencies for ZCS and setup of Split DNS when working behind a firewall. This tutorial is based on the way I set this server up and is only a suggestion. It carries no guarantees and it is highly suggested that you do this on a test server first to verify functionality. If you don't have a test server available you should download VMWare Server 1.0 and perform this tutorial on a test virtual server.

This tutorial shows how to set up a CentOS 4.6 based server that offers all services needed by ISPs and web hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Dovecot POP3/IMAP, Quota, Firewall, etc. This tutorial is written for the 32-bit version of CentOS 4.6, but should apply to the 64-bit version with very little modifications as well.

This tutorial shows how to install and use alterMIME. alterMIME is a tool that can automatically add a disclaimer to emails. In this article I will explain how to install it as a Postfix filter on Debian Etch.

This article shows how you can install and use POPFile to classify incoming emails on an Ubuntu Feisty Fawn desktop. It is a POP3 proxy that fetches your mails from your mail server, classifies them and passes them on to your email client. Of course, POPFile must be trained to properly classify emails.

This document describes how to install a Fedora 7 mail server based on Qmail using Qmail Toaster. Qmail is an Internet Mail Transfer Agent (MTA) for UNIX-like operating systems. It is a drop-in replacement for the Sendmail system provided with UNIX operating systems. Qmail uses the Simple Mail Transfer Protocol (SMTP) to exchange messages with MTAs on other systems.

Simple how-to for installing and configuring policyd-weight policy daemon. Policyd-weight sits inline with Postfix and can reject mails before the data transaction. This is great for quickly IDing spammers and rejecting them before soaking up bandwidth and processing via spamassassin. How-to is geared towards Gentoo Linux, but can be easily applied to others.

This tutorial shows how you can import Outlook Express emails, contacts, and account settings into Mozilla Thunderbird and Evolution. This is quite useful if you want to switch from Windows to Linux but do not want to lose your mails and address book. The procedure should be similar if you use Outlook instead of Outlook Express.

This guide shows how to install the Zimbra Collaboration Suite (ZCS) on Ubuntu 6.10 (Edgy Eft) and 6.06 (Dapper Drake) server systems. Zimbra is a full-featured, open source collaboration suite - email, group calendaring, contacts, and web document management and authoring. It has a feature-rich AJAX web interface and is compatible with clients such as Microsoft Outlook, Apple Mail, and Novell Evolution so that mail, contacts, and calendar items can be synchronised from these to the ZCS server. It can also be synchronized to many mobile devices.

Hate website registrations? Paranoid about giving away your email id? (you should be, there is a reason why they ask for your email in the first place!). Learn to use disposable email ids. This is a great service. You get an email which will be active for the next 10 minutes. Use it to register for those annoying 'registration required' websites.

Howto documenting the procedure for installing amavisnewsql to manage spam settings and quarantine through squirrelmail. It's assumes you have postfix/amavisd-new already configured to manage spam and clamav. This squirrelmail plugin allows individual mail accounts to manage white/blacklists, spam thresholds and quarantined emails.. on a per mail account level!