Email a weekly digest of payment notification emails
An n8n AI workflow reads labeled payment emails in Gmail, pulls the top three takeaways from each and sends a Sunday digest.
Done withn8n
- What they did
- The author labels payment emails in Gmail, then builds an n8n workflow that runs Sunday at 8 AM. It fetches the past week's labeled messages, aggregates them, and truncates the text to 100K characters. An AI Agent node running gpt-4o-mini through OpenRouter writes the digest from a system-message template. A code node converts the markdown to HTML, and Gmail sends it.
- How it went
- The author gets about 15 payment notifications a week, and the workflow turns them into one weekly digest email. The post gives no measured results beyond a successful test run.
- Worth knowing
- Truncating to 100K characters keeps the combined email text within what OpenAI can handle. Without the formatting code node, the email shows raw markdown symbols.
Try it yourself with n8n
Build an n8n workflow that every Sunday reads emails under Gmail label [payment notifications] from the past week, has AI pull the top three takeaways from each, and compiles them into one digest. Send the digest to [my email]. It's finished when a test run produces a digest from the last week's labeled emails.
Source: mariannanakos.substack.com · Undated
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