SKILL FILE

Email Marketing with Resend with AI

Build email marketing campaigns with Resend API — templates, audiences, tracking, and AI-written copy.

Download Skill File ↓

What this skill file teaches Claude

Drop one markdown file into your repo. Claude Code learns how to run this entire workflow.

1

Send transactional + marketing email

Same API for "welcome email" and "weekly newsletter". One service, two job-to-be-done.

2

Webhook event tracking

sent / delivered / opened / clicked / bounced — every event written to your CRM events table.

3

Bounce handling automatic

Hard bounce → contact marked do_not_contact → auto-removed from sequences. No more reputation damage.

4

React Email templates

Write emails as React components. Version-controlled, type-safe, preview locally.

5

Audiences + sequences

Postgres-backed audience definitions ("customers who opened the last 3 emails"), sequence_enrollments table runs the automation.

6

Signature-verified webhooks

Svix signature verification on incoming events — production-safe.

What you can build with this

Transactional email

Welcome, password reset, receipt — replaces SendGrid ($19/mo).

Weekly newsletter

Pull subscriber list from CRM, send, track. No Mailchimp.

Drip sequence

New signup → 5-email onboarding over 2 weeks. Self-pause on engagement, exit on bounce.

Get the full skill file

Everything above is 80% of the skill file. Download the complete version with full implementation details, agent prompts, and ready-to-run scripts.

Common questions

Resend: 3,000 emails/month free, then $20/mo for 50K, $80/mo for 100K. Mailchimp at the same list sizes: $135/mo, $200+/mo. About 75% cheaper at any scale, and the free tier covers most early-stage businesses.
The skill includes prompts for non-technical operations ("send this content to my newsletter audience"). For one-off sends you can use the Resend dashboard directly. For automated sequences you need the webhook + sequences setup, which the skill walks through.
Resend uses Amazon SES for delivery — same deliverability as SendGrid. The skill includes SPF / DKIM / DMARC setup walkthroughs for your sending domain (critical for inbox placement).
Yes — export from Mailchimp as CSV, the skill includes an import script that respects subscription status + tags. Maintains permission state.
One-click unsubscribe header is auto-added (Gmail/Yahoo require this now). Unsubscribes write to do_not_contact in your CRM and exit all sequences.

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