# The Agentic Email Stack: Resend + n8n + Claude for Triggered Campaigns > Resend handles delivery. n8n handles triggers. Claude writes the emails. Here is how to wire them together into a fully agentic email stack that sends the right message at the right time -- automatically. - **URL**: https://www.maximalstudio.in/blog/agentic-email-stack --- Maximal StudioApproachResourcesBlogToolsGet In Touch<- Back to BlogThe Agentic Email Stack: Resend + n8n + Claude for Triggered CampaignsJun 29, 2026-Shubham RasalResend handles delivery. n8n handles triggers. Claude writes the emails. Here is how to wire them together into a fully agentic email stack that sends the right message at the right time -- automatically.Transactional email is solved. Resend or SendGrid, pick one, send the email, done. The unsolved part is what to say -- the email that goes out when a user hits a specific behavior, the follow-up that's personalized to what they actually did, the reactivation sequence that doesn't sound like a template. This post is about wiring Resend, n8n, and Claude together into a stack where triggers and logic live in n8n, writing lives in Claude, and delivery lives in Resend. The result is an email system that responds to real user behavior with real writing. The Stack Resend -- transactional email delivery. Clean API, React Email support, excellent deliverability. You're not using it for marketing email sequences -- just for sending whatever the stack decides to send. n8n -- workflow orchestration. Watches for events (new signup, inactivity trigger, purchase, etc.) and routes them to the right Claude prompt. Self-hosted or cloud. Claude -- the writer. Receives context about the user and the trigger event, and produces a personalized email. No template, no merge tags -- just writing that fits the situation. How It Connects The data flow is simple: Event trigger (n8n webhook/schedule) -> Fetch user context (n8n HTTP node -> your DB or CRM) -> Generate email copy (n8n -> Claude API) -> Send email (n8n -> Resend API) -> Log result (n8n -> your DB) In n8n, this is four nodes. The Claude node is an HTTP request to the Anthropic API with a prompt that includes the user context. The Claude Prompt Pattern The key is giving Claude enough context to write something that feels personal: You are writing a triggered email for [Company Name]. User context: - Name: {{user.name}} - Signed up: {{user.created_at}} - Last active: {{user.last_seen}} - Plan: {{user.plan}} - Key action they took: {{trigger.action}} Trigger: This user just {{trigger.description}}. Write a short email (3-4 sentences max) that: - Acknowledges what they just did - Offers one specific piece of value relevant to that action - Has a single clear next step Tone: direct, not salesy. Like a message from a founder, not a marketing team. Subject line: [write one] Body: [write it] Swap {{trigger.description}} per workflow: "completed their first import", "hasn't logged in for 14 days", "upgraded from free to paid". Three Workflows Worth Building First 1. Onboarding completion Trigger: user completes a setup step. Claude writes a message acknowledging the specific step and suggesting the next one. Better than a generic "you're all set" email. 2. Inactivity reactivation Trigger: no login in 7 days. Claude writes based on what the user last did -- "you were setting up X, here's how to finish it" is more effective than "we miss you." 3. Upgrade moment Trigger: user hits a usage limit on free plan. Claude writes the upgrade email with context about exactly what they were trying to do when they hit the wall. What You're Not Building This stack is not a replacement for Mailchimp or a broadcast email tool. It's for event-triggered, user-specific emails -- the ones where context matters. For newsletters and announcements, use a purpose-built tool. The agentic part is that no human decides what to write or when to send. The trigger fires, Claude assesses the context, and the right email goes out. At scale, that's the difference between email that feels like a notification and email that feels like a conversation. Want This Stack Built for Your Product? We build Resend + n8n + Claude integrations for teams that want intelligent email without a dedicated email marketer. Let's talk about your stack.Keep exploringWork with usBuild your AI product ->We ship AI integrations, dev tools, and full products for teams.Free ToolsAI Calculators & Utilities ->ROI calculator, LLM cost estimator, workflow tools.Case StudiesReal-world AI builds ->See how we've shipped AI automation for real businesses.BlogMore posts ->Practical guides on AI, automation, and building fast.Maximal StudioAI & automation for builders.PagesToolsBlogCase StudiesApproachResourcesOfficeIndiaBangaluru, Karnataka, IndiaConnectLinkedInXEmail© 2026 Maximal Studio. All rights reserved. --- Maximal Studio builds custom AI systems, automations, and growth tooling.