How To Install and Configure Postfix on AlmaLinux 10

To install and configure Postfix on AlmaLinux 10, follow the steps below to set up a basic mail transfer agent and test email delivery.

Step 1 : Update the System

Make sure your system is up to date:

sudo dnf update -y

Step 2 : Install Postfix

Install the Postfix mail server:

sudo dnf install postfix -y

Step 3 : Start and Enable Postfix

Start Postfix and enable it to run at boot:

sudo systemctl start postfix
sudo systemctl enable postfix

Step 4 : Verify Postfix Status

Check whether Postfix is running correctly:

sudo systemctl status postfix

Step 5 : Test Postfix

- Install a mail client to send test emails:

sudo dnf install mailx -y

- Open a Temporary Email Service

Open a temporary email inbox, for example using a temporary mail website (https://temp-mail.org/en/)

- Send an email from the server to the temporary email address:

echo "Postfix test email" | mail -s "Test Postfix" your-temp-email@example.com

- Verify that the email has been received successfully.

Step 6 : Check Mail Logs

Review mail logs to confirm message delivery:

sudo tail -f /var/log/maillog

Congratulations! You have successfully installed and configured Postfix on AlmaLinux 10 and verified that it can send emails correctly.