Transactional Email

Overview

SaaS apps send email constantly: verification, invites, receipts, password resets, alerts. Use a provider built for it (Resend, Postmark, or SES) with React Email for typed, previewable templates. Treat sending as a side effect: trigger it from a background job, not inline in the request, so a slow mail API never blocks the user or fails their action.

When to use

• Sending verification, invite, receipt, reset, or notification emails.
• Building reusable, branded email templates.
• Email sends are slowing requests or failing them.

Template + send

// src/server/email/templates/Invite.tsx
import { Button, Html, Text } from "@react-email/components";