Nylas CLI vs n8n vs Zapier for email automation in 2026

You want to send a digest email at 7 AM every weekday, or fire a Slack alert when an "INVOICE" subject lands. Three tools claim to solve this: n8n, Zapier, and the Nylas CLI. They look interchangeable on a marketing page. They are not. I built the same five email-automation tasks in each. Here is what I found. The five tasks Task Why it matters Send a daily digest from a Postgres query The "report by email" workflow every product team needs Auto-archive newsletters with subject "weekly" Inbox hy