Free AI Email Marketing in 2026: Listmonk (22k Stars) Self-Hosted + LLM Copywriting - Send 100k Emails for $0

Listmonk (22,626 stars) is a free self-hosted newsletter tool that sends millions of emails without per-email fees, and pairing it with an LLM turns one product update into segmented, personalized campaigns.

💡 What You Will Learn

Listmonk (22,626 stars) is a free self-hosted newsletter tool that sends millions of emails without per-email fees, and pairing it with an LLM turns one product update into segmented, personalized cam

## The short answer **Listmonk** (22,626 stars, AGPL) is a self-hosted newsletter and mailing list manager: single binary, modern dashboard, campaigns, templates and subscriber management - no per-email costs. Mailchimp charges around $13/month for 500 contacts; Listmonk on a $5 VPS sends unlimited emails for the same price as the server. ## Step 1 - Deploy Listmonk ```bash curl -LO https://github.com/knadh/listmonk/releases/latest/download/listmonk-linux-amd64.tar.gz tar xzf listmonk-linux-amd64.tar.gz ./listmonk --new-config # creates config.toml, set up Postgres ./listmonk --install # creates the database ./listmonk # admin UI at http://localhost:9000 ``` ## Step 2 - Build the AI copywriting loop 1. Write one "master update" (product news, price change, new feature). 2. Ask an LLM to generate 5 subject lines - A/B test them. 3. Ask for 3 audience variants: new subscribers, power users, inactive users. 4. Use Listmonk's built-in campaign scheduling to send them. ## Real numbers - Listmonk sends ~10,000 emails in about 10 minutes from a single VPS with proper SPF/DKIM setup. - Typical deliverability with warmed-up domain: 95%+ inbox rate. - Compare: Mailchimp free tier stops at 500 contacts; Listmonk is unlimited. ## FAQ **Q: Do I need a separate email service?** A: No - Listmonk sends directly via SMTP. Configure SPF, DKIM and DMARC on your domain first. **Q: Is the LLM part free?** A: Use DeepSeek or local Ollama (177,825 stars) for $0 copywriting; or any API with a free tier. **Q: Will my emails land in spam?** A: Warm up your domain (start with 50-100/day), keep complaint rate under 0.1%, and use double opt-in. Listmonk has all the tooling.