Courier MTA is a popular mail transfer agent that is known for its simplicity and reliability. In this tutorial, we will be installing Courier MTA on Void Linux.
Before we install Courier MTA, we need to make sure our system is up-to-date. To do this, we can run the following command:
sudo xbps-install -Syu
This will update all installed packages on our Void Linux system.
To install Courier MTA, we need to run the following command:
sudo xbps-install -S courier-mta
This will download and install the Courier MTA package from the official Void Linux package repository.
Once the installation is complete, we need to configure Courier MTA to use our mail server. This can be done by editing the /usr/local/etc/courier/esmtpd configuration file:
sudo nano /usr/local/etc/courier/esmtpd
In this file, we need to modify the following lines:
ADDRESS=0.0.0.0
TCPDOPTS="-nodnslookup -noidentlookup"
We need to replace the ADDRESS parameter with the IP address of our mail server, and modify the TCPDOPTS parameter as follows:
TCPDOPTS="-nodnslookup -noidentlookup -name=$(hostname -f)"
This parameter will ensure that the server's hostname is recorded in the header of each email.
To start and enable the Courier MTA service we need to run the following two commands:
sudo ln -s /etc/sv/esmtpd /var/service
sudo sv start esmtpd
With ln we create a symbolic link to the esmtpd service in the var/service directory. This directory contains all services that should be started at boot time.
The sv start esmtpd command then starts the service as expected.
We have successfully installed and configured Courier MTA on Void Linux. We can now send and receive emails using our newly created mail server.
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