What problem does it solve? Building email features involves many failure points: messages landing in spam due to missing SPF/DKIM/DMARC authentication, duplicate sends from naive retry logic, legal exposure from CAN-SPAM/GDPR/CASL violations, and inaccessible templates that screen readers cannot parse. This Skill provides structured guidance across the entire email lifecycle so these issues are addressed systematically. ## Core Features & Use Cases - Deliverability & Authentication: Set up SPF, DKIM, and DMARC DNS records, warm up sending IPs, and troubleshoot spam placement with diagnostic tools like Google Postmaster Tools. - Transactional & Marketing Email Patterns: Plan the emails your app needs (password resets, OTPs, order confirmations) and implement consent-based marketing with double opt-in and one-click unsubscribe. - Production Reliability: Implement idempotency keys, exponential backoff retries, webhook signature verification, and suppression list management for bounces and complaints. - Use Case: You are launching a SaaS app and need password reset emails that reach inboxes. Use this Skill to configure DNS authentication, design the reset email with proper accessibility markup, add idempotent sending with retry logic, and process bounce webhooks to keep your list clean. ## Quick Start Ask the agent to help set up SPF, DKIM, and DMARC records for your sending domain and plan the transactional emails your app needs.
