Email Service

Email for applications, workflows, and agents

Cloudflare Email Service gives your applications and agents a native way to send transactional email, receive inbound messages, and automate workflows on a global network.

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Built for Agents

Give agents a real inbox and the ability to send, receive and reply without stitching together third-party tools.

Programmable by default

Route inbound email to Workers, process with AI, store attachments, and trigger workflows with code

One platform, bidirectional email

Combine email routing and email sending to handle the full email lifecycle on one platform.

A few lines of code. Global email delivery.

Use Email Sending for outbound delivery and Email Routing for inbound handling, all from the same Workers application.

Email Service

Email for agents

You can use Email Service to:

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Send from Workers

Trigger transactional and workflow email directly from application logic.

Route inbound email

Receive mail on your domain and hand it to Workers for processing.

Enrich and orchestrate

Classify content with AI, store attachments, and fan out async work with Queues.

Reply or escalate

Respond automatically, update state, or hand off to downstream systems and humans.

export default {  async fetch(request, env) {    await env.SEND_EMAIL.send({      to: [{ email: 'user@example.com' }],      from: { email: 'notifications@your-domain.com', name: 'Your App' },      subject: 'Your order has shipped',      text: 'Your order #1234 has shipped and is on its way.',    });
    return new Response('Email sent');  },};

export default {  async email(message, env, ctx) {    const raw = await new Response(message.raw).text();
    await env.EMAIL_QUEUE.send({      from: message.from,      to: message.to,      raw,    });  },};

import { Agent, routeAgentEmail } from 'agents';import { createAddressBasedEmailResolver, type AgentEmail } from 'agents/email';import PostalMime from 'postal-mime';
export class SupportAgent extends Agent {  async onEmail(email: AgentEmail) {    const raw = await email.getRaw();    const parsed = await PostalMime.parse(raw);
    const emails = this.state.emails || [];    emails.push({      from: email.from,      subject: parsed.subject,      body: parsed.text,      receivedAt: new Date().toISOString(),    });
    this.setState({ ...this.state, emails });
    await this.replyToEmail(email, {      fromName: 'Support Agent',      body: `We received your message about "${parsed.subject}".`,    });  }}
export default {  async email(message, env) {    await routeAgentEmail(message, env, {      resolver: createAddressBasedEmailResolver('SupportAgent'),    });  },};

Powerful primitives, seamlessly integrated

Built on systems powering 20% of the Internet, Email Service runs on the same infrastructure Cloudflare uses to build Cloudflare. Enterprise-grade reliability, security, and performance are standard.