Transactional Email Delivery

Help the user with transactional/triggered email — from provider selection and template design through API integration, SMTP relay, deliverability, and monitoring. This skill is tool-agnostic but includes platform-specific guidance for SendGrid, Postmark, Mailgun, Brevo, Customer.io, Mailchimp/Mandrill, and Amazon SES.

Step 1 — Gather context

If references/learnings.md exists, read it first for accumulated knowledge.

Ask the user: