Building Postfix from source can be a rewarding experience with great results.  This tutorial will show you how to do a basic build and then following tutorials will show you how to build in additional features. Download Source Code From Here: http://www.postfix.org/download.html When you download the source and unpack it you ...

Recently we asked administrators why they used Postfix Mail Server.  Here are some of the responses: "Being able to manage users and pretty much all mail aspects from a MySQL table" "Security.  Postfix is rock solid and I do not have to worry about the security of the system once it is set up correctly" "Flexibility!" "I've been running Postfix on an array of servers for the last eight years.  I don't think I'd ever switch to anything ...

There will be times when you have you have your Postfix Mail Server set up and Spam is under control and all of a sudden you will see a new wave of Spam hit your site.  This article will help you see how you can make some small adjustments to cut down on new waves of Spam.  Here is an example of the new wave of Spam I started ...

Whitelists / Blacklists You can set up whitelists and blacklists to modify the settings to make sure certain email addresses never get blocked or always get blocked. Prevent any Spam Checking In order to create a situation where you have no Spam checking you can use the bypass option.  These options are added to ...

One of the newest features of Ubuntu 9.04 is the Postfix Mail Server/Dovecot enhancements to make it easier to set up a mail server.  This article is a review of those improvements and a tutorial on how to fix several problems that were experienced. Before you jump to any conclusions about the new features it is important to ...

Deferred  queue If Postfix cannot deliver a message to a recipient it is placed in the deferred queue.  The queue manager will scan the deferred queue to see it if can place mail back into the active queue.  How often this scan occurs is determined by the queue_run_delay.  Postfix will scan the incoming queue at the same time as the ...

Citadel offers and easy to install and easy to configure mail server. On an Ubuntu server you can install the suite with: sudo apt-get install citadel-suite During the install you will be asked several questions.   The first question you will be asked if you want to use Apache for the web interface or WebCit.  This example ...

You can list the default settings with Postfix with this command: postconf -d 2bounce_notice_recipient = postmaster access_map_reject_code = 554 address_verify_default_transport = $default_transport address_verify_local_transport = $local_transport address_verify_map = address_verify_negative_cache = yes address_verify_negative_expire_time = 3d address_verify_negative_refresh_time = 3h address_verify_poll_count = 3 address_verify_poll_delay ...