Build Cloudflare Email Sending

Cloudflare Email Service (open beta since 2026-04) sends transactional email through three equivalent paths — a Workers send_email binding, a REST API, and SMTP — all sharing one pipeline, one quota, and automatic DKIM/ARC signing. This skill gets a sending domain onboarded, picks the right send path for the caller's architecture, and executes migrations from other providers without breaking email mid-cutover.

When to use

Use this skill if you are: