email-gateway
Installation
Summary
Multi-provider email API with Resend, SendGrid, Mailgun, and SMTP2Go support.
- Supports four email providers with provider-agnostic abstractions for easy migration, each optimized for different use cases (React Email templates, enterprise scale, developer webhooks, or reliable relay)
- Handles transactional emails, batch sending (50–1000 recipients per request), dynamic templates, attachments, and webhook event tracking for bounces, complaints, opens, and clicks
- Includes TypeScript types, rate limiting patterns, exponential backoff retry logic, and webhook signature verification for all providers
- Built for Cloudflare Workers and Node.js with environment variable configuration and KV-based rate limit tracking
SKILL.md
Email Gateway (Multi-Provider)
Status: Production Ready ✅ Last Updated: 2026-01-10 Providers: Resend, SendGrid, Mailgun, SMTP2Go
Quick Start
Choose your provider based on needs:
| Provider | Best For | Key Feature | Free Tier |
|---|---|---|---|
| Resend | Modern apps, React Email | JSX templates | 100/day, 3k/month |
| SendGrid | Enterprise scale | Dynamic templates | 100/day forever |
| Mailgun | Developer webhooks | Event tracking | 100/day |
| SMTP2Go | Reliable relay, AU | Simple API | 1k/month trial |
Related skills
More from jezweb/claude-skills
tailwind-v4-shadcn
|
2.7Ktanstack-query
|
2.5Kshadcn-ui
Install and configure shadcn/ui components for React projects. Guides component selection, installation order, dependency management, customisation with semantic tokens, and common UI recipes (forms, data tables, navigation, modals). Use after tailwind-theme-builder has set up the theme infrastructure, when adding components, building forms, creating data tables, or setting up navigation.
2.5Ktailwind-theme-builder
>
2.2Kfastapi
|
2.0Kcolor-palette
>
1.9K