How To Install Postfix on Ubuntu 18.04?

Postfix is an open-source Mail Transfer Agent (MTA). It uses to route and deliver emails on a Linux machine. Please refer to the following steps to install and configure Postfix on Ubuntu 18.04.

Before proceeding for the steps, you need to ensure that you are using FQDN (Fully Qualified Domain Name) as your Ubuntu 18.04 server's hostname. Also, the MX record needs to point to your email server if you want to receive the emails in Postfix.

  1. It is easy to install Postfix because it is included in the default repositories of Postfix. At first, we will update the apt package and run the below command. 

    sudo apt update 
    sudo apt-get install postfix
  2. At the installation setup, select the Internet Site for the mail configuration and enter the domain name for your email server. 

  3. Enter the root and postmaster email addresses. This email address uses for the primary account.

  4. Other destinations to accept mail for. In this, we can mention other domains. Postfix can receive emails for the mentioned domain. You can enter your other domains. If you don't want to enter any domain, you can keep the default value and hit the OK button. 

  5. We will set No in the below option as we use the journaled filesystem.

  6. At the Local Network, keep the default settings and hit the OK button. 
  7. Enter the Mail Box size limit. If you set the 0, it means there is no restriction on the mailbox size limit.

  8. Choose the character for the local address extension, if require and click on the OK button.

  9. Select all the internet protocols. Once you click on it, the installation process will begin to start. 

  10. After completing the process, check for the service, and it should be Active.

    service postfix status
  11. Now, let us test the Postfix server using telnet.

    telnet 127.0.0.1 25
    Connected to 127.0.0.1.
    Escape character is '^]'.
    220 demovpstest.com ESMTP Postfix (Ubuntu)

Related Articles

How to enable error-log.txt logging using .htaccess file?

You need to add the below lines in .htaccess file if you want your PHP errors within the...

How to sync time using NTP in Ubuntu server?

Linux server users might have noticed that after adjusting the system clock to the correct time,...

How to Enable Extended Logging in Exim?

Extended Exim log is helpful in troubleshooting Exim issues on Linux Server. It allows you to add...

How to Install phpMyAdmin on CentOS 7?

phpMyAdmin is a web-based GUI tool to manage your MySQL and MariaDB Databases. It is an...

Do You Offer VPS with 8 vCPU Cores?

No, we do not provide VPS with 8 vCPU cores. We provide VPS with maximum 4 vCPU cores. This is...

  • 0 Users Found This Useful

Was this answer helpful?