Transactional Email Engine

Transactional email is the part of your app users notice only when it breaks — and it breaks in ways that quietly cost you customers. The happy path of sending one email takes minutes. The parts that protect trust and revenue take weeks and are usually skipped.

Transactional Email Engine turns your AI agent into a senior delivery engineer that scaffolds a complete, production-grade email system end to end: verification, password reset, receipts, and notifications — all wired to your app and email provider with the hard edge cases already handled.

The Problem

Most hand-rolled email setups are subtly broken. Emails land in spam because SPF, DKIM, and DMARC were never configured. A password-reset link gets sent twice because the send wasn't idempotent. A provider outage silently drops every receipt for an hour with no retry. A bounced address gets mailed repeatedly until your domain reputation tanks. Teams usually discover these problems only after real users are affected.

What It Does

1. Provider Integration — Wires up your chosen provider (Resend, Postmark, SendGrid, or Amazon SES) behind a single clean interface, so you can switch later without rewriting call sites.

2. Hardened Sending — Builds an idempotent send pipeline with automatic retries, exponential backoff, and a dead-letter queue, so a transient failure never silently drops a critical email.

3. Deliverability Setup — Generates the exact SPF, DKIM, and DMARC records for your domain and provider, plus a checklist to verify them, so your mail authenticates and reaches the inbox.

4. Suppression & Bounce Handling — Builds a suppression list and processes bounce and complaint webhooks, so you stop mailing dead or angry addresses and protect your sender reputation.

5. Templates — Scaffolds responsive, client-tested templates for verification, reset, receipts, and notifications, with both HTML and plain-text parts.

Why It's Worth It

A single missed reset or receipt email is a support ticket and a dent in trust. A throttled sender domain can take weeks to recover. This skill front-loads the work that protects deliverability and revenue, and hands you a system you can extend instead of a one-off send call you'll have to rebuild later.