What problem does it solve? Building reliable email and notification systems involves many decisions and pitfalls: choosing a provider, configuring DNS records for deliverability, avoiding synchronous sending that slows API responses, and handling bounces correctly. This Skill provides decision trees, production-ready code patterns, and checklists for implementing transactional email, multi-channel notifications, and drip campaigns in web applications. ## Core Features & Use Cases - Provider Selection & Setup: Decision trees and comparison tables for Resend, SendGrid, Postmark, AWS SES, and Mailgun, plus DNS configuration guidance (SPF, DKIM, DMARC) and domain warmup schedules. - Production Email Architecture: React Email component templates, queue-based sending with BullMQ and Redis, webhook handling for delivery events, and bounce/complaint management. - Notification Systems & Drip Campaigns: Multi-channel notification routing (email, in-app, push) with user preferences, Prisma schemas, and delayed-job email sequences with cancellation support. - Use Case: When a user signs up for your SaaS app, use this Skill to send a React Email welcome template through a BullMQ queue, schedule a 5-step onboarding drip sequence, and handle bounce webhooks to protect sender reputation. ## Quick Start Ask the AI to set up transactional welcome emails using Resend and React Email with queue-based sending for your application.
