How To Install Exim Mail Server on CentOS 6

r00t March 25, 2015

exim-logo

or those of you who didn’t know, Exim is a mail transfer agent (MTA) used on Unix-like operating systems. Exim is free software distributed under the terms of the GNU General Public License, and it aims to be a general and flexible mailer with extensive facilities for checking incoming e-mail. The Exim security record is much better than sendmail. Advanced features are queue handling, address routing and testing.

This article assumes you have at least basic knowledge of linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple. I will show you through the step by step installation Exim on CentOS 6.

Step 1. First, we need to install the latest EPEL repository RPM suited to your architecture.

Step 2. Install the Exim package.

Step 3. Disable Postfix (the default MTA).

By default, CentOS using Postfix as MTA. Follow is how to disable and enable exim on CentOS. First, we stop the service and disable postfix for autostart:

Step 4. Set Exim as the default MTA.

Next we change the default Postfix MTA to Exim. Press “2” enter to select Exim:

Step 5. Start Exim service.

Step 6. Accessing Exim.

Now you are done with Exim installation. Let’s verify is the MTA working as expected:

Congratulation’s! You have successfully installed Exim. Thanks for using this tutorial for installing Exim Mail Server on CentOS 6 systems.

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