How to Install Postorius on Elementary OS Latest

Postorius is a web interface for managing Mailman 3 lists. This tutorial will guide you through the process of installing Postorius on Elementary OS Latest using command-line tools.

Prerequisites

Before you start, you need to make sure that your system is up to date and that you have all the required dependencies installed. Open a terminal and run the following command:

sudo apt update && sudo apt upgrade

Then install the following dependencies:

sudo apt install python3-setuptools python3-wheel python3-pip python3-cryptography \
  python3-django python3-django-appconf python3-django-compressor \
  python3-django-statici18n python3-psycopg2 python3-jwt python3-requests \
  python3-dateutil python3-six python3-tz python3-lxml

Install Postorius

Now that you have all the prerequisites, you can start installing Postorius.

1. Install Mailman 3 by running the following command:

   sudo apt install mailman3
   

2. Configure Mailman 3 by running the following command:

   sudo dpkg-reconfigure mailman3-web
   

3. Enable and activate the Virtual Environment by running the following commands one after the other:

   sudo su
   cd /var/lib/mailman3
   source venv/bin/activate
   

   Note: Do not exit the virtual environment, even after you've finished installing Postorius.

4. Install Postorius and Django-Mailman3 by running the following command:

   pip3 install django-postorius django-mailman3
   

5. Create a new directory for Postorius configuration files by running the following command:

   sudo mkdir /etc/mailman3-web
   

6. Copy the example configuration file to the new directory by running the following command:

   sudo cmp /usr/share/doc/mailman3-web/examples/postorius.conf.example /etc/mailman3-web/postorius.conf
   

7. Edit the configuraton file to match your setup. Run the following command to open the file in a text editor:

   sudo nano /etc/mailman3-web/postorius.conf
   

   Modify the following settings to match your setup:

   MAILMAN_API_KEY = '<your-mailman3-api-key>'
   DATABASES = {
       'default': {
           'ENGINE': 'django.db.backends.postgresql',
           'NAME': 'mailman',
           'USER': 'mailman',
           'PASSWORD': '<your-postgres-password>',
           'HOST': 'localhost',
           'PORT': '5432',
           'OPTIONS': {
               'sslmode': 'prefer',
           }
       }
   }
   

   Save and close the file.

8. Create a new directory for static files by running the following command:

   sudo mkdir /var/lib/mailman3-web/static
   

9. Collect the static files by running the following command:

   python3 /usr/share/mailman3-web/manage.py collectstatic --noinput
   

   Note: This command may take a few minutes to complete.

10. Restart Mailman 3 and Apache web server by running the following commands:

sudo systemctl restart mailman3-web
sudo systemctl reload apache2

Access Postorius

You can now access Postorius by opening a web browser and navigating to the following address:

http://localhost:8000/postorius/

Log in with your Mailman 3 admin credentials and start using Postorius to manage your lists.

Conclusion

You now have Postorius installed and ready to use on your Elementary OS Latest machine. With this web interface, you can easily manage all your Mailman 3 lists from a user-friendly web interface.

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