Set up a mail server on Linux

linux mail ubuntu server pop3 imap mailserver

A simple guide how to set up a basic Postfix mail server with IMAP and POP3 services. It does not included advanced topics such as integrating virus-checking and spam-filtering.

Setup Overview

In our setup, Postfix sends and receives mail from Internet and stores them in the user mailboxes while clients in the Internet can retrieve their mails via Courier IMAP or POP3. The user authentication is done by Courier Authdaemon. The following diagram shows this process.


Install Postfix

In this setup I assume that your domain is yourdomain.com and it has a valid MX record call mail.yourdomain.com. Remember to replace yourdomain.com with your actual domain in the example codes in this howto. Also I assume that you know what an MX record is. To find out MX your type in a terminal:

dig mx yourdomain.com

To install postfix

sudo apt-get install postfix

Intall mailx package for use as command mail utility program. Mail command is installed with this package.

sudo apt-get install mailx
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3 places for your problems with Ubuntu

Help for Ubuntu, linux distro

Here are some place when you are in trouble with Ubuntu Linux. Forums and IRC channel where you get help in a very short time…les than 1 min.

Ubuntuforums.org is one of the biggest bulletin board dedicated to Ubuntu. Everything is in the right place, just search before you post a new topic.

Ubuntuguide.org is the Ubuntu User Manual. It’s a must-read for those new to Ubuntu, and especially for those just beginning in Linux.

IRC.Ubuntu.com where people are friendly, knowledgeable, and courteous, and will do their best to answer your question.

Upgrade Fedora Core 7 to last release Fedora 8

There are some days that Fedora 8 was released, below you have a rapid upgrade without downloading fedora dvd and after burning etc etc. We recommend to make a backup before you start and make sure that you have all the updates for fedora 7.

First Step: Open Terminal windows and write:

[sourcecode language=’c’] rpm -Uhv http://mirror.anl.gov/pub/fedora/linux/releases/8/Fedora/i386/os/Packages/fedora-release-8-3.noarch.rpm http://mirror.anl.gov/pub/fedora/linux/releases/8/Fedora/i386/os/Packages/fedora-release-notes-8.0.0-3.noarch.rpm[/sourcecode]

Second Step: Run on Terminal

yum -y update

It make take about one hour to download and install, after you need it to reboot and enjoy the new Fedora 8.

That’s all.

Best of Open Source Software – Linux Ubuntu


LONDON, October 15, 2007 – Canonical Ltd. announced today the upcoming availability of version 7.10 of the Ubuntu Server, Desktop, Kubuntu and Edubuntu Editions. All will be available for free download on Thursday 18 October. Canonical is the commercial sponsor of Ubuntu.

Ubuntu makes no distinction between community and enterprise editions, Ubuntu 7.10 is our best work and is available freely to all. Ubuntu has consistently ranked #1 in reviews of security update responsiveness and effectiveness. The Ubuntu platform is fully certified and supported, making it a secure choice for users looking to explore, deploy and enjoy Linux. Ubuntu 7.10 brings together the best open source and free software available in a stable, robust environment that ‘just works’.

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Pre-Order Ubuntu Gutsy Gibbon for Free


Requesting CDs from ShipIt for free

Ubuntu is available free of charge and we can send you CDs of the latest version (7.10 (Gutsy Gibbon)) with no extra cost, but the delivery may take up to ten weeks, so you should consider downloading the CD images if you have a fast Internet connection.

Pre-order CDs of Ubuntu 7.10 (Gutsy Gibbon)

or

Download and test the beta version of 7.10 (Gutsy Gibbon)

38 Free Icon Checkpoints

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Mini Pixel Icons

1. FamFamFam – most popular free silk icon sets in the internet.
2. Tango Icon Library – hundreds of desktop icon sets.
3. 2pt3 – five sets of square bullet icons.
4. Drunkey Love Iconset – consists of over 100 16×16 icons in PNG format.
5. Strawbee – tiny little cute icons.
6. Sanscons – a small spinoff icon set that allows for CSS-based coloring and framing.
7. Bitcons – a mini-pixel icon set containing 121 individual icons for various subjects.
8. Sweetie – cute and clear icons to use for web application.
9. Feed Icons – official feed icons. Continue reading