{"id":1065,"date":"2024-06-10T15:23:05","date_gmt":"2024-06-10T09:53:05","guid":{"rendered":"https:\/\/vcomweb.tech\/ss\/?p=1065"},"modified":"2024-06-12T10:52:39","modified_gmt":"2024-06-12T05:22:39","slug":"a-step-by-step-postal-email-server-on-ubuntu-20-04-a-comprehensive-guide","status":"publish","type":"post","link":"https:\/\/vcomweb.tech\/ss\/a-step-by-step-postal-email-server-on-ubuntu-20-04-a-comprehensive-guide\/","title":{"rendered":"A Step-by-Step Postal Email Server on Ubuntu 20.04: A Comprehensive Guide"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Introduction:<\/h2>\n\n\n\n<p> In the world of email marketing and transactional emails, having a reliable and efficient email server is crucial. Postal is an open-source email server solution that provides a robust platform for sending and tracking emails at scale. In this guide, we&#8217;ll walk you through the process of setting up Postal on an Ubuntu 20.04 server.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Prerequisites: <\/h2>\n\n\n\n<p>Before getting started, make sure you have the following:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A VPS or dedicated server running Ubuntu 20.04.<\/li>\n\n\n\n<li>SSH access to the server with sudo privileges.<\/li>\n\n\n\n<li>Basic knowledge of Linux command-line interface.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Step 1: Update System Packages: <\/h2>\n\n\n\n<p>Begin by updating the package index and upgrading existing packages to their latest versions, using below command:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">sudo apt update<\/mark><\/code><\/strong><\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">sudo apt upgrade<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 2: Install Dependencies:<\/h2>\n\n\n\n<p> Postal requires several dependencies packages which let apt use packages over HTTPS: Install them using:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">apt -y install apt-transport-https ca-certificates curl software-properties-common<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 3: Add the GPG key for Docker Repository:<\/h2>\n\n\n\n<p> Then add the GPG key for the official Docker repository to your system, the following commands:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">curl -fsSL https:\/\/download.docker.com\/linux\/ubuntu\/gpg | sudo apt-key add -<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 4: Add the Docker repository to APT sources:<\/h2>\n\n\n\n<p> add the docker to apt sources , run the following command:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">sudo add-apt-repository \"deb [arch=amd64] https:\/\/download.docker.com\/linux\/ubuntu focal stable\"<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 5: Again Update System Packages: <\/h2>\n\n\n\n<p>update the package database with the Docker packages from the newly added repo:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">sudo apt update<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 6: Install Docker: <\/h2>\n\n\n\n<p>Finally, install Docker, run below command:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">sudo apt install docker-ce<\/mark><\/code><\/strong><\/p>\n\n\n\n<p>Docker should now be installed, the daemon started, and the process enabled to start on boot. Check that it\u2019s running<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">sudo systemctl status docker<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 7: Installing Docker Compose and Permissions: <\/h2>\n\n\n\n<p>At the time of this writing, the most current stable version is 1.27.4<br>The following command will download the 1.27.4 release and save the executable file at \/usr\/local\/bin\/docker-compose, which will make this software globally accessible as docker-compose, run the following command:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">sudo curl -L \"https:\/\/github.com\/docker\/compose\/releases\/download\/1.29.2\/docker-compose-$(uname -s)-$(uname -m)\" -o \/usr\/local\/bin\/docker-compose<\/mark><\/code><\/strong><\/p>\n\n\n\n<p>Next, set the correct permissions so that the docker-compose command is executable:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">sudo chmod +x \/usr\/local\/bin\/docker-compose<\/mark><\/code><\/strong><\/p>\n\n\n\n<p>Install basic utility programs required for POSTAL:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">apt install git curl jq -y<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 8: Install postal:<\/h2>\n\n\n\n<p> Clone the Postal repository from GitHub, install the required Ruby version, and install Postal:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">git clone https:\/\/postalserver.io\/start\/install \/opt\/postal\/install<\/mark><\/code><\/strong><\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">sudo ln -s \/opt\/postal\/install\/bin\/postal \/usr\/bin\/postal<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 9: Installing MariaDB on Docker: <\/h2>\n\n\n\n<p>To install MariaDB, copy and paste the below to your terminal, remember to update the password:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">docker run -d \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">--name postal-mariadb \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">-p 127.0.0.1:3306:3306 \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">--restart always \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">-e MARIADB_DATABASE=postal \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">-e MARIADB_ROOT_PASSWORD=YOUR_DATABASE_PASSWORD \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">mariadb<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 10: Installing RabbitMQ on Docker:<\/h2>\n\n\n\n<p> To install RabbitMQ, copy and paste the below to your terminal, remember to update the password.<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">docker run -d \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">--name postal-rabbitmq \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">-p 127.0.0.1:5672:5672 \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">--restart always \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">-e RABBITMQ_DEFAULT_USER=postal \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">-e RABBITMQ_DEFAULT_PASS=YOUR_MQ_PASSWORD \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">-e RABBITMQ_DEFAULT_VHOST=postal \\<\/mark><\/code><\/strong><br><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">rabbitmq:3.8<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 11: Configure Postal and User create: <\/h2>\n\n\n\n<p>Create the Postal configuration file and initialize the database and user create:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">postal bootstrap postal.yourdomain.com<\/mark><\/code><\/strong><\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">nano\u00a0 \/opt\/postal\/config\/postal.yml<\/mark><\/code><\/strong><\/p>\n\n\n\n<p>At the minimum, have the following settings:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>web:\n  # The host that the management interface will be available on\n  host: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">postal.example.com<\/mark><\/strong><\/mark>\n  # The protocol that requests to the management interface should happen on\n  protocol: https\n\nmain_db:\n  # Specify the connection details for your MySQL database\n  host: localhost\n  username: <mark><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\"><strong>postal<\/strong><\/mark><\/mark>\n  password: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">StrongPassword<\/mark><\/strong><\/mark>\n  database: postal\n\nmessage_db:\n  # Specify the connection details for your MySQL server that will be house the\n  # message databases for mail servers.\n  host: localhost\n  username: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">postal<\/mark><\/strong><\/mark>\n  password: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">StrongPassword<\/mark><\/strong><\/mark>\n  prefix: postal\n\nrabbitmq:\n  # Specify the connection details for your RabbitMQ server.\n  host: 127.0.0.1\n  username: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">postal<\/mark><\/strong><\/mark>\n  password: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">StrongPassword<\/mark><\/strong><\/mark>\n  vhost: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">postal<\/mark><\/strong><\/mark>\n  \ndns:\n  # Specifies the DNS record that you have configured. Refer to the documentation at\n  # https:\/\/github.com\/atech\/postal\/wiki\/Domains-&amp;-DNS-Configuration for further\n  # information about these.\n  mx_records:\n    - <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">mx.postal.example.com<\/mark><\/strong><\/mark>\n  smtp_server_hostname: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">postal.example.com<\/mark><\/strong><\/mark>\n  spf_include: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">spf.postal.example.com<\/mark><\/strong><\/mark>\n  return_path: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">rp.postal.example.com<\/mark><\/strong><\/mark>\n  route_domain: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">routes.postal.example.com<\/mark><\/strong><\/mark>\n  track_domain: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">track.postal.example.com<\/mark><\/strong><\/mark>\n\nsmtp:\n  # Specify an SMTP server that can be used to send messages from the Postal management\n  # system to users. You can configure this to use a Postal mail server once the\n  # your installation has been set up.\n  host: 127.0.0.1\n  port: 2525\n  username: # Complete when Postal is running and you can\n  password: # generate the credentials within the interface.\n  from_name: Postal\n  from_address: <mark><strong><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">postal@example.com<\/mark><\/strong><\/mark><\/code><\/pre>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">postal initialize<\/mark><\/code><\/strong><\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">postal make-user<\/mark><\/code><\/strong><\/p>\n\n\n\n<p>Follow the prompts to configure settings such as database connection and Redis connection.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 11: Start Postal: <\/h2>\n\n\n\n<p>Start the Postal server and worker processes:<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">sudo systemctl start postal<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 12: Installing Caddy on Docker: <\/h2>\n\n\n\n<p>To install Caddy, copy and paste the below to your terminal.<\/p>\n\n\n\n<p><strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">docker run -d \\<\/mark><\/code><\/strong><\/p>\n\n\n\n<p>&nbsp;&nbsp; <strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">--name postal-caddy \\<\/mark><\/code><\/strong><\/p>\n\n\n\n<p>&nbsp;&nbsp;<strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\"> --restart always \\<\/mark><\/code><\/strong><\/p>\n\n\n\n<p>&nbsp;&nbsp; <strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">--network host \\<\/mark><\/code><\/strong><\/p>\n\n\n\n<p>&nbsp;&nbsp;<code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\"><strong> -v \/opt\/postal\/config\/Caddyfile:\/etc\/caddy\/Caddyfile \\<\/strong><\/mark><\/code><\/p>\n\n\n\n<p>&nbsp;&nbsp; <strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\">-v \/opt\/postal\/caddy-data:\/data \\<\/mark><\/code><\/strong><\/p>\n\n\n\n<p>&nbsp;&nbsp;<strong><code><mark style=\"background-color:#000000\" class=\"has-inline-color has-vivid-green-cyan-color\"> caddy<\/mark><\/code><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 13: Access Postal: <\/h2>\n\n\n\n<p>You can now access Postal via your domain name or server IP address. Open your web browser and navigate to http:\/\/your-domain.com or http:\/\/your-server-ip.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion: <\/h2>\n\n\n\n<p>Setting up Postal on Ubuntu 20.04 is a straightforward process that can be accomplished in just a few steps. By following this guide, you can have a powerful email server up and running in no time, ready to handle your email delivery needs with ease and efficiency. If you encounter any issues, as on contact <a href=\"mailto:info@vcomweb.tech\">info@vcomweb.tech<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction: In the world of email marketing and transactional emails, having a reliable and efficient email server is crucial. 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