Listmonk RSS Newsletter Automation

Automatically send newsletters from RSS feeds using Listmonk (open source) and GitHub Actions, saving money compared to Mailchimp and other newsletter providers.

Features

• Schedule newsletter campaigns with latest update from your feed
• Automatically fetch new items from RSS feeds
• Create newsletter content based on a Markdown template for RSS feed items
• Receive push notifications when campaign is scheduled, enough time to edit the draft
• GitHub Actions integration for automated scheduling without the need for running a server
• Dry run mode to test campaign creation without scheduling or updating state

Requirements

• A running Listmonk instance (e.g., deployed with PikaPods)
• GitHub account and a version of this repository
• An existing RSS feed URL, obviously

Diagram

Setup

1. Testing Setup

1. Fork this repository so that you can set up your own schedule and clone it.

2. On GitHub, Create a new repository variable LAST_UPDATE in your GitHub repo to persist the last update timestamp.

3. Create a GitHub Personal Access Token with repo scope at https://github.com/settings/tokens, make sure that you have the following permission set: "Variables" repository permissions (write) (we need to send an API call to update a repository variable).

4. On your machine, install dependencies using uv:

   uv sync -U

5. Create a .env file with your configuration:

   LISTMONK_HOST=<your-listmonk-instance>
   LIST_NAME=<Name of your Listmonk list as it shows in the interface>
   LISTMONK_API_USER=<your_api_user>
   LISTMONK_API_TOKEN=<your_api_token>
   
   GH_TOKEN=<your github api token>
   GH_REPOSITORY=<yourusername>/listmonk-rss
   
   RSS_FEED=<your RSS feed URL>
   DELAY_SEND_MINS=45

6. Test the script locally with the environment variable below:

   make create_campaign

Dry Run Mode

To test the script without actually scheduling a campaign or updating the last update timestamp:

make dry_run

This will:

• Create a campaign draft scheduled 10 years in the future
• Not update the LAST_UPDATE timestamp
• Allow you to review the campaign content in Listmonk

2. Pushover Notifications (Optional)

To receive notifications when newsletters are scheduled (this gives you an opportunity to review the content before it is sent out):

1. Create a Pushover account at https://pushover.net
2. Install the Pushover app on your devices
3. Get your User Key from the Pushover dashboard
4. Create an Application/API Token

Set the env variables:

PUSHOVER_USER_KEY=<your-pushover-user-key>
PUSHOVER_API_TOKEN=<your-pushover-api-token>

3. GitHub Actions Setup

Once you have setup and tested everything locally, you can move it to GitHub:

1. Add your .env file contents, Pushover credentials, and GitHub token as GitHub Secrets and Environment variables in your repository (see screenshots below):

   • Go to Settings → Secrets and variables → Actions
   • There is a tab "Secrets" and a tab "Variables".

2. The workflow is already configured in .github/workflows/listmonk_rss.yml and does the following:

   • Runs on Weekdays at 8:00 UTC, change the cron schedule as you want.
   • Persists state between runs using the repository variable (LAST_UPDATE), Uses GitHub API to store and retrieve the last processed timestamp
   • Automatically creates and schedules newsletters based on the Python script.

3. To manually trigger the workflow for testing:

   • Go to Actions → Listmonk RSS
   • Click "Run workflow"
   • Check in Listmonk whether the draft campaign has been created

Screenshot "Repository Secrets"

Screenshot "Repository Variables"

Configuration

Environment Variables

Variable	Description	Required
LISTMONK_API_USER	Listmonk API username	Yes
LISTMONK_API_TOKEN	Listmonk API token	Yes
LISTMONK_HOST	Listmonk instance URL	Yes
LIST_NAME	Name of the mailing list in Listmonk	Yes
RSS_FEED	URL of the RSS feed to monitor	Yes
DELAY_SEND_MINS	Minutes to delay sending after creation (default: 30). In dry run mode, this is set to 10 years.	No
PUSHOVER_USER_KEY	Pushover user key for notifications (optional)	No
PUSHOVER_API_TOKEN	Pushover API token for notifications (optional)	No
GH_REPOSITORY	GitHub repository in "owner/repo" format	Yes
GH_TOKEN	GitHub token with repo scope for state storage	Yes

Template Customization

Edit template.md.j2 to customize your newsletter format. The template uses Jinja2 syntax and has access to:

• items: List of RSS feed items with:
  • title: Article title
  • link: Article URL
  • summary: Article summary
  • media_content: OpenGraph image URL

Related work and Contributing

This repo is inspired by rss2newsletter, but I wanted a solution that runs without setting up a dedicated server, it just needs the Listmonk instance and GitHub.

Contributions are welcome, but there's no guarantee that I will have the resources to act on them. I use this repo mostly for my own purposes. My advice would be to fork it and adjust it to your needs.

Contact

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