Postfix

Information for Linux System Administration

Virtual Users/Domains with Postfix, Courier, MySQL, SquirrelMail (CentOS 6.3)

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This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier, so that Courier can authenticate against the same MySQL database Postfix uses. The resulting Postfix server is capable of SMTP-AUTH and TLS and quota. Passwords are stored in encrypted form in the database. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV so that emails will be scanned for spam and viruses. I will also show how to install SquirrelMail as a webmail interface so that users can read and send emails and change their passwords. read more...

mail this link | permapage | score:9818 | -falko, March 27, 2013

Tutorial: Automatically add a disclaimer to emails with alterMIME (Postfix on Debian 6)

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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 Squeeze. read more...

permapage | score:9747 | -falko, January 18, 2013

Postfix: SMTP Options with Webmin

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Webmin can be used to create and edit mail aliases which can be used to send mail to individuals, groups, lists or even applications. Webmin is a web based front end used for monitoring Linux servers which have no GUI. read more...

permapage | score:9326 | -aweber, August 29, 2012

Virtual Users and Domains with Postfix, Courier, MySQL, SquirrelMail (Fedora 18)

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This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses. The resulting Postfix server is capable of SMTP-AUTH and TLS and quota. Passwords are stored in encrypted form in the database. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV so that emails will be scanned for spam and viruses. I will also show how to install SquirrelMail as a webmail interface so that users can read and send emails and change their passwords. read more...

mail this link | permapage | score:9326 | -falko, February 10, 2013

Virtual users with Postfix/Courier/MySQL/SquirrelMail (Ubuntu 12.10)

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mail this link | permapage | score:9098 | -falko, November 8, 2012

Postfix Virtual Hosting, LDAP backend, Dovecot on Ubuntu 9.10 IMAP/POP3 Server

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This how to will allow you step by to configure a Postfix mail server with with virtual hosting. Virtual hosting means that you can add as many mail domains as you want and sub sequentially as many mailboxes for these domains as you want. Here we we use an LDAP backend for both the MTA (Postfix) and POP3/IMAP server (Dovecot), and a web based management interface. Optional in this how to is the use of Roundcube webmail and proftpd. read more...

permapage | score:9036 | -falko, December 12, 2009

iRedMail 0.7.0 Tutorial: Postfix, Dovecot, Amavisd, ClamAV, SpamAssassin

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iRedMail is a shell script that lets you quickly deploy a full-featured mail solution in less than 2 minutes. Its object is to make a Linux mail server installation and configuration simple, painless and easy to use. Most components used in iRedMail are provided by Linux distributions officially. It means that iRedMail users can get software update support for as long as the the distribution is supported. iRedMail supports both OpenLDAP and MySQL as backends for storing virtual domains and users. This tutorial shows how to use the OpenLDAP backend on Debian Squeeze. read more...

mail this link | permapage | score:9023 | -falko, March 4, 2011

Tutorial: PostfixAdmin and Fetchmail

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Have you ever wanted to move mail from an old account to a new account? This tutorial will show you how to use fetchmail with PostfixAdmin. read more...

permapage | score:8988 | -aweber, September 3, 2010

Build a Mail Server on CentOS 6 with Postfix, Dovecot, PostgreSQL

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We're going to set up a free, full-featured mail server on CentOS 6.2, all mail service related components are free and open source, and you have control over your own data. The installation process is extremly easy and smooth. read more...

permapage | score:8986 | -falko, April 29, 2012

Set up Postfix, MySQL, DoveCot, DSpam, ClamAV, Postgrey on Debian Linux

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This guide describes how to set up a full email solution in Debian Linux (all code is from Debian Etch). I was asked to design a secure, scalable, portable solution for a small company. While the guide references many servers, the company only had 4 physical machines, Xen was used to virtualize the entire solution. That particular aspect of the system is not discussed in this guide, although I will try to get it into the next revision. read more...

permapage | score:8928 | -falko, October 31, 2007

iRedMail Tutorial: Mail Server with LDAP, Postfix, and more on Debian

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iRedMail is a shell script that lets you quickly deploy a full-featured mail solution in less than 2 minutes. Since iRedMail 0.5, it supports Debian 5.0.1 (it supports both i386 and x86_64). Its object is to make a Linux mail server installation and configuration simple and easy to use. iRedMail supports both OpenLDAP and MySQL as backends for storing virtual domains and users.This tutorial shows how to use OpenLDAP as the backend. read more...

permapage | score:8835 | -falko, June 6, 2009

Postfix Active Directory authentication on CentOS 5.x

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This document describes how to integrate Postfix/Dovecot with Microsoft Active Directory on CentOS 5.x, and you can manage mail users in Microsoft Active Directory. You will learn how to enable Postfix to look up email addresses in Active Directory and how to enable Dovecot to authenticate against Microsoft Active Directory. read more...

permapage | score:8828 | -falko, June 24, 2011

Add disclaimers to emails with alterMIME (Postfix on Debian Lenny)

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permapage | score:8715 | -falko, September 21, 2010

Forward Postfix aliases to /dev/null

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Send Postfix virtual aliases to /dev/null...

...sometimes you want to use a "do-not-reply" type of email address, and you don't want to have to mass-delete the mailbox at intervals.

The usual solution is to forward to /dev/null, and in a local-only setup you could do that in /etc/aliases:

do-not-reply: /dev/null

However, if you're using Postfix virtual domains, it gets a little more complicated. With virtual domains/users, you can't forward mail to a file. It must go to a user or an email address, like this:

iRedMail: Quickly configure a Mail Server with LDAP, Postfix, RoundCube / SquirrelMail on Ubuntu 8.04

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iRedMail is a shell script that lets you quickly deploy a full-featured mail solution in less than 2 minutes. Since version 0.5, iRedMail supports Ubuntu 8.04, 9.04 (it supports both i386 and x86_64). Its object is to make a Linux mail server installation and configuration simple and easy to use. iRedMail supports both OpenLDAP and MySQL as backends for storing virtual domains and users. This tutorial shows how to use the OpenLDAP backend. read more...

permapage | score:8700 | -falko, December 3, 2009

Tutorial: Harden Postfix

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The goal of this tutorial is to harden the mail server Postfix used by ISPConfig for internet mail servers where authenticated users are trusted. With this setup you will reject a great amount of spam before it passes into your mail queue, saving a lot of system resources and making your mail server strong against spammers and spam botnets. read more...

permapage | score:8689 | -falko, February 3, 2012

Postfix Virtual Hosting with LDAP on Ubuntu

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I have been running with a MySQL backend for virtual hosting for some time, but when I discovered Phamm and the added FTP feature I decided to switch to LDAP as backend for Postfix with virtual hosting. In view of the fact that the installation and configuration guide of Phamm is lacking some basic information it took me quite some time to put it all together and get it working. Piecing it all together was not simple so I would like to share how I configured it and got it all working toghether. read more...

mail this link | permapage | score:8550 | -falko, August 3, 2008

Virtual Users with Postfix, Courier, MySQL, SquirrelMail (CentOS 6.0)

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This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database that Postfix uses. The resulting Postfix server is capable of SMTP-AUTH and TLS and quota. Passwords are stored in encrypted form in the database. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV so that emails will be scanned for spam and viruses. I will also show how to install SquirrelMail as a webmail interface so that users can read and send emails and change their passwords. read more...

mail this link | permapage | score:8547 | -falko, September 23, 2011

iRedMail 0.7.0 Tutorial: Mail Server with Postfix, Dovecot, Amavisd, ClamAV, SpamAssassin, RoundCube

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iRedMail is a shell script that lets you quickly deploy a full-featured mail solution in less than 2 minutes. Its object is to make a Linux mail server installation and configuration simple, painless and easy to use. Since version 0.7.0, iRedMail supports OpenSuSE (it supports both i386 and x86_64). iRedMail supports both OpenLDAP and MySQL as backends for storing virtual domains and users. This tutorial shows how to use the OpenLDAP backend on OpenSuSE 11.3. read more...

permapage | score:8539 | -falko, December 11, 2010