Linux Mail Server Setup and Howto Guide

By default, Postfix listens on the SMTP port number 25. Some ISPs block this port number so you may wish to provide an alternate port number to listen to or change it altogether.

If your Postfix mail server has multiple IP addresses, it will use the same SMTP hostname greeting on every IP Address. This may cause a problem since some mail servers check the SMTP hostname banner to see if the hostname points to the same mail server. If not, any mail you send may be rejected or handled as spam. You can confirm if you have this problem by getting a DNS report on your domain name.

Before using SquirrelMail, the user should first fill in at least the name and email address in the Personal Information option. But we can eliminate this step by using the RetrieveUserData plugin to retrieve this information from a variety of sources and automatically update this information.

If you are querying a Windows 2003 Active Directory, some query operations does not work. This is because certain queries performs anonymous LDAP operations even if you have binded your connection. To fix this problem, you have to implement the change specified in the Microsoft Knowledge Base at http://support.microsoft.com/kb/326690. The steps below describes one way to implement this change using ADSI Edit included in the Windows Server 2003 Support Tools.

If you are using Linux system accounts as your mail accounts, you can install the change_passwd plugin to enable SquirrelMail to provide a password change utility.

This guide will show you how to integrate Active Directory/LDAP into the SquirrelMail addressbook. In this page, you will learn how to configure SquirrelMail to activate the Javascript addressbook and to include your Active Directory or LDAP server into the addressbook lookup list.