cyberneticlibrary

Send transactional emails via Cloudflare

cloudflare-email-serviceskillsetup L20
Sheshiyer/skill-clusters
What it does

Send and receive transactional emails via Cloudflare Workers/REST API

Best for

Building transactional email flows in Cloudflare Workers when you need zero-config email without external SMTP providers.

Inputs
  • · email recipient address
  • · HTML/text body
  • · optional attachments and headers
  • · domain to send from
Outputs
  • · send confirmation with message ID or delivery status
  • · routed incoming emails
Requires
  • · Cloudflare account with Email Sending enabled
  • · Workers send_email binding OR REST API token
Preconditions

Domain must be onboarded via `wrangler email sending enable yourdomain.com`; binding or API token configured

Failure modes

Common mistake: forgetting send_email binding; unverified domain silently fails; raw email stream single-use; launched 2025 so API unstable

Trust signals
  • · Workers binding (no API key leakage)
  • · REST API support for external apps
  • · Email Routing for incoming mail
  • · Deliverability guidance included