Deploying Sympa

Introduction

Sympa is an open-source mailing list management software known for its flexibility and feature richness. Used by universities, companies, and organizations worldwide, Sympa handles everything from small discussion groups to large-scale newsletter distribution.

Key highlights of Sympa:

List Management: Create and manage multiple mailing lists
Web Interface: User-friendly web administration and archive browsing
Authentication: LDAP, CAS, and various SSO integration
Moderation: Flexible message moderation and approval workflows
Archives: Searchable message archives with web access
Templates: Customizable email and web templates
Scenarios: Fine-grained access control with scenario-based permissions
DKIM/DMARC: Email authentication support
Bounce Management: Automatic handling of bounced messages
Multi-Domain: Support for multiple email domains

This guide walks through deploying Sympa on Klutch.sh using Docker.

Why Deploy Sympa on Klutch.sh

Deploying Sympa on Klutch.sh provides several advantages:

Simplified Deployment: Klutch.sh automatically detects your Dockerfile and builds Sympa without complex orchestration.

Persistent Storage: Attach persistent volumes for list data, archives, and configuration.

HTTPS by Default: Secure web interface with automatic SSL certificates.

GitHub Integration: Connect your configuration repository for automatic redeployments.

Prerequisites

Before deploying Sympa on Klutch.sh, ensure you have:

A Klutch.sh account
A GitHub account with a repository for your Sympa configuration
Basic familiarity with Docker and containerization concepts
A MySQL or PostgreSQL database
An SMTP server for sending/receiving emails
DNS records configured for your mailing list domain

Deploying Sympa on Klutch.sh

Create Your Repository

Create a new GitHub repository with a Dockerfile for Sympa:

FROM sympa/sympa:latest

ENV SYMPA_DOMAIN=${SYMPA_DOMAIN}
ENV SYMPA_LISTMASTER=${SYMPA_LISTMASTER}
ENV SYMPA_DB_TYPE=mysql
ENV SYMPA_DB_HOST=${DB_HOST}
ENV SYMPA_DB_NAME=${DB_NAME}
ENV SYMPA_DB_USER=${DB_USER}
ENV SYMPA_DB_PASSWORD=${DB_PASSWORD}

EXPOSE 80

VOLUME ["/var/lib/sympa", "/var/spool/sympa", "/etc/sympa"]

Push to GitHub

Initialize and push your repository to GitHub with your Dockerfile.

Create a New Project on Klutch.sh

Navigate to the Klutch.sh dashboard and create a new project.

Create a New App

Within your project, create a new app and connect your GitHub repository.

Configure HTTP Traffic

In the deployment settings:

Select HTTP as the traffic type
Set the internal port to 80

Set Environment Variables

Configure the following environment variables:

Variable	Value
`SYMPA_DOMAIN`	Your mailing list domain
`SYMPA_LISTMASTER`	Admin email address
`DB_HOST`	Database hostname
`DB_NAME`	Database name
`DB_USER`	Database username
`DB_PASSWORD`	Database password

Attach Persistent Volumes

Add the following volumes:

Mount Path	Recommended Size	Purpose
`/var/lib/sympa`	10 GB	List data and archives
`/var/spool/sympa`	5 GB	Message queue
`/etc/sympa`	1 GB	Configuration

Deploy Your Application

Click Deploy to start the build process.

Access Sympa

Once deployment completes, access the Sympa web interface at your app URL.

Configuration

Creating Lists

Create a new mailing list:

Log in as listmaster
Navigate to Create List
Enter list name and description
Select list type (discussion, newsletter, etc.)
Configure initial settings

List Types

Sympa supports various list types:

Discussion: Two-way communication for group discussions
Newsletter: One-way announcements to subscribers
Moderated: Messages require approval before distribution
Private: Restricted membership and archives

DNS Configuration

Configure DNS for proper email handling:

lists.example.com.    MX    10 mail.example.com.
lists.example.com.    TXT   "v=spf1 include:_spf.example.com ~all"

Additional Resources

Conclusion

Deploying Sympa on Klutch.sh gives you a powerful mailing list management system with automatic builds, persistent storage, and secure HTTPS access. Manage discussion lists and newsletters with enterprise-grade features.