cloudflare-email-service

To send transactional email from Cloudflare Workers, configure the send_email binding in your Worker and call env.EMAIL.send() with both html and text content for your message. Ensure your sending domain is properly onboarded first.

Yes, you can send transactional email from external apps by using the Cloudflare Email Sending REST endpoint. You need to use the correct field names and properly handle the API responses to ensure reliable email delivery.

To route inbound email with Cloudflare Workers, implement an email() handler in your Worker. This handler allows you to forward, reject, reply to, and safely parse raw MIME messages from incoming emails.

Onboarding a domain for Cloudflare email sending requires correct domain configuration to prevent common deliverability and setup failures. You must complete this setup before using Workers bindings or the Email Sending REST API.

When forwarding inbound email with Cloudflare Workers, you must safely handle routing and forwarding constraints to avoid execution failures. Properly managing raw MIME parsing and adhering to deliverability best practices are required constraints.