newsletter-automation_skill

Overview

This skill is a complete newsletter management system built with n8n and Google Sheets. It handles double opt-in signup, an automated welcome drip (Day 0/3/7), broadcast sending with unsubscribe links, and daily subscriber analytics. The package includes four production-ready n8n workflows and clear configuration placeholders for quick deployment.

How this skill works

A signup webhook validates email addresses, writes pending records to Google Sheets, and sends a confirmation link for double opt-in. Confirmed subscribers are read by scheduled workflows that trigger the welcome drip and by a broadcast workflow that sends API-triggered campaigns. A daily analytics workflow summarizes counts, growth, confirmation rates, and top sources and emails the report to the admin.

When to use it

• You want a self-hosted, low-cost newsletter pipeline without per-subscriber fees.
• You need double opt-in signups and automated welcome sequences controlled in your stack.
• You want to broadcast messages via a secure API and include unsubscribe handling.
• You prefer Google Sheets as an easy backend and quick audit trail.
• You need daily subscriber analytics emailed to an admin.

Best practices

• Create the Google Sheet with the exact subscriber schema and a tab named "Subscribers" before importing workflows.
• Set and secure environment variables: admin email, base URL, and broadcast secret.
• Use an SMTP credential with good deliverability (custom domain or SES) to avoid bounces and spam filters.
• Test signup and broadcast flows with a staging sheet and temporary addresses before switching to production.
• Rotate the NEWSLETTER_SECRET and monitor access to the broadcast webhook for security.

Example use cases

• Personal newsletters or independent writers avoiding SaaS vendor lock-in.
• Small businesses sending weekly updates to customers without per-contact fees.
• Product teams automating release notes and targeted feature announcements.
• Community groups managing member communications and signups via a simple form.
• Content creators onboarding new subscribers with a timed welcome series.