---
description: API reference for sending outbound emails using the Email Service Workers API or REST API.
title: Send emails
image: https://developers.cloudflare.com/og-docs.png
---

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> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/email-service/llms.txt  
> Use this file to discover all available pages before exploring further.

# Send emails

API reference for sending emails with Cloudflare Email Service using the Workers API or REST API.

Last updated Aug 25, 2026|Copy as Markdown|[View as Markdown](https://4f1c5cd2.previews.developers.cloudflare.com/email-service/api/send-emails/index.md)|[Agent setup](https://4f1c5cd2.previews.developers.cloudflare.com/agent-setup/)

Reference for sending outbound emails using the Workers binding, the REST API, or SMTP.

* [Workers API](https://4f1c5cd2.previews.developers.cloudflare.com/email-service/api/send-emails/workers-api/)
* [REST API](https://4f1c5cd2.previews.developers.cloudflare.com/email-service/api/send-emails/rest-api/)
* [SMTP](https://4f1c5cd2.previews.developers.cloudflare.com/email-service/api/send-emails/smtp/)

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