Cloudflare Email Service

Best for: Prototypes and side projects - free to start, no sales call; Regulated or enterprise workloads - compliance attestations and an enterprise plan; AI agents and automation - an agent-ready surface (MCP / llms.txt)

Pricing model

Hybrid (base + usage) [2]developers.cloudflare.com/email-service/platform/pricing/“Email Routing is available on both the Workers Free and Workers Paid plans. Email Sending is only available on the Workers Paid plan.”developers.cloudflare.com/workers/platform/pricing/“The Workers Paid plan includes Workers, Pages Functions, Workers KV, Hyperdrive, and Durable Objects usage for a minimum charge of $5 USD per month”

Published pricing

✓ Yes [3]developers.cloudflare.com/email-service/platform/pricing/“Email Routing is available on both the Workers Free and Workers Paid plans. Email Sending is only available on the Workers Paid plan.”cloudflare.com/plans/developer-platform/“Workers Free · $0/mo · Workers Paid · Starting at $5/mo”

Free tier

✓ Yes [4]developers.cloudflare.com/email-service/platform/pricing/“Email Routing is available on both the Workers Free and Workers Paid plans.”cloudflare.com/products/email-routing“Cloudflare Email Routing is a free, private service for creating custom email addresses and forwarding messages to any inbox”

Free tier details

Workers Free plan includes unlimited inbound email routing at $0/mo. Email Sending is only available on the Workers Paid plan ($5/mo minimum, 3,000 outbound emails included, then $0.35 per 1,000 emails). [5]developers.cloudflare.com/email-service/platform/pricing/“Email Routing is available on both the Workers Free and Workers Paid plans. Email Sending is only available on the Workers Paid plan.”developers.cloudflare.com/workers/platform/pricing/“The Workers Paid plan includes Workers, Pages Functions, Workers KV, Hyperdrive, and Durable Objects usage for a minimum charge of $5 USD per month”

Self-serve signup

✓ Yes [6]developers.cloudflare.com/email-service/get-started/cloudflare.com/plans/developer-platform/“Workers Free · $0/mo · Workers Paid · Starting at $5/mo”

Requires sales call

✗ No [7]developers.cloudflare.com/email-service/get-started/“Set up Cloudflare Email Service to send transactional emails and route incoming messages.”cloudflare.com/plans/developer-platform/“Workers Free · $0/mo · Workers Paid · Starting at $5/mo”

Enterprise plan

✓ Yes [8]cloudflare.com/plans/developer-platform/“Workers Free · $0/mo · Workers Paid · Starting at $5/mo”cloudflare.com/workers-service-level-agreement/“Service Level Commitment 2.1 Cloudflare will use commercially reasonable efforts to provide a Monthly Uptime Percentage of 99.99% for Customer's use of Workers”

• Transactional send
• Inbound parsing
• Analytics

Supported actions

send_email, handle_incoming_email, forward_email, reply_email, reject_email [9]developers.cloudflare.com/email-service/api/send-emails/rest-api/“The REST API allows you to send emails from any application using standard HTTP requests.”developers.cloudflare.com/email-service/api/route-emails/email-handler/“Process incoming emails with the email() handler in Cloudflare Workers to forward, reply, or reject messages.”developers.cloudflare.com/email-service/api/send-emails/workers-api/“Send emails directly from Cloudflare Workers using the Email Service binding and send() method.”

Regions

Global [10]infoq.com/news/2025/10/cloudflare-email-service/“In true Cloudflare fashion, Email Service is a global service. That means that we can deliver your emails with low latency anywhere in the world, without the complexity of managing servers across regi”blog.cloudflare.com/email-service/“That means that we can deliver your emails with low latency anywhere in the world, without the complexity of managing servers across regions.”

Input types

JSON, EmailMessage objects, base64-encoded attachments [11]developers.cloudflare.com/email-service/api/send-emails/rest-api/“The REST API allows you to send emails from any application using standard HTTP requests.”developers.cloudflare.com/email-service/api/send-emails/workers-api/“Send emails directly from Cloudflare Workers using the Email Service binding and send() method.”

Output types

JSON (delivered/permanent_bounces/queued arrays), EmailSendResult (messageId), Promise<void> [12]developers.cloudflare.com/email-service/api/send-emails/rest-api/developers.cloudflare.com/email-service/api/send-emails/workers-api/

Webhooks

✗ No [13]developers.cloudflare.com/email-service/developers.cloudflare.com/email-service/concepts/email-lifecycle/

Sandbox / test mode

✗ No [14]developers.cloudflare.com/email-service/developers.cloudflare.com/email-service/get-started/

SDK languages

Node.js, TypeScript [15]developers.cloudflare.com/fundamentals/api/reference/sdks/“Use Cloudflare API SDKs for Go, TypeScript, and Python to integrate Cloudflare services into your applications.”

MCP server

✓ Yes [16]developers.cloudflare.com/learning-paths/holistic-ai-security/concepts/mcp/“An MCP server is a program that exposes capabilities to AI agents, giving them access to new datasets or tools — like an email service to send”developers.cloudflare.com/agents/model-context-protocol/cloudflare/servers-for-cloudflare/“These MCP servers allow your MCP client to read configurations from your account, process information, make suggestions based on data, and even”

SOC 2

SOC 2 Type II [17]cloudflare.com/trust-hub/compliance-resources/soc-2/“Cloudflare's SOC 2 Type II report covers security, confidentiality, and availability controls to protect customer data and is available to download from the”cloudflare.com/trust-hub/compliance-resources/“SOC 2 Type II. Certification to attest to Security, Confidentiality, and”

HIPAA

– Unknown [18]cloudflare.com/trust-hub/privacy-and-data-protection/“Leading healthcare organizations use Cloudflare to protect user and patient data. Learn how our services aligns to HIPAA compliance needs.”cloudflare.com/resources/assets/slt3lc6tev37/3PeVHvuZAh7p3tN77kIfhG/596a459dd1cfbc2ad6b1dbef36ff0eb1/BDES-1265_Privacy_Compliance_Whitepapers_HIPAA.pdf“We offer a Business Associate Agreement (BAA) which incorporates the clauses required by HIPAA so that companies that are transmitting PHI can use Cloudflare security services and still meet their req”

GDPR

✓ Yes [19]cloudflare.com/trust-hub/privacy-and-data-protection/cloudflare.com/trust-hub/compliance-resources/

ISO 27001

✓ Yes [20]cloudflare.com/trust-hub/compliance-resources/“ISO 27001:2022. Implementation of an Information Security Management System”cloudflare.com/trust-hub/compliance-resources/iso-certifications/“Cloudflare is certified as ISO 27001, 27018 and 27701 compliant.”

PCI DSS

– Unknown [21]cloudflare.com/trust-hub/compliance-resources/

Published SLA

✗ No [22]cloudflare.com/workers-service-level-agreement/“Service Level Commitment 2.1 Cloudflare will use commercially reasonable efforts to provide a Monthly Uptime Percentage of 99.99% for Customer's use of Workers”

Rate limits

Your account may have daily sending limits based on Cloudflare's assessment of your account standing. These limits are applied on a per-account basis, may vary, and may be adjusted over time based on your sending behavior. REST API returns HTTP 429 with error code 10004 (email.sending.error.throttled) when rate limit exceeded. Workers API returns E_RATE_LIMIT_EXCEEDED and E_DAILY_LIMIT_EXCEEDED errors. [23]developers.cloudflare.com/email-service/platform/limits/“Your account may have daily sending limits based on Cloudflare's assessment of your account standing. These limits are applied on a”developers.cloudflare.com/email-service/api/send-emails/rest-api/

Known restrictions

Your account may have daily sending limits based on Cloudflare's assessment of your account standing. These limits are applied on a per-account basis, may vary, and may be adjusted over time based on your sending behavior., When you first start using Email Service, you can send emails to verified email addresses in your account. Accounts on a paid plan can send emails to any recipient, subject to daily sending limits., 50 recipients per email (combined across all recipient fields), 5 MiB total message size including attachments (25 MiB for verified addresses only), 998 characters subject line (RFC 5322 compliant), 16 KB all custom headers combined, 32 attachments per email, Currently in public beta [24]developers.cloudflare.com/email-service/platform/limits/“Your account may have daily sending limits based on Cloudflare's assessment of your account standing. These limits are applied on a”developers.cloudflare.com/email-routing/limits/“Currently, Email Routing does not support messages bigger than 25 MiB. Rules and addresses. Each rule maps one custom email address (like info@”

• Docs
• API reference
• llms.txt
• Changelog

Docs rendering: static · llms.txt present

API style

rest

Base URL

https://api.cloudflare.com/client/v4

Version

v4

Versioning

url

Stability

beta

Auth methods

api_key

Error format

vendor-specific

SDKs

• Node.js wrangler · repo · updated 2026-06 · 4,138★
• TypeScript @cloudflare/workers-types · repo · updated 2026-06 · 4,138★

• Auth docs
• Quickstart
• MCP server
• Deprecation policy

Launched

2025-09-25

• Mailgun

  Mailgun is the all-in-one, intelligent email delivery platform trusted by businesses and loved by developers.

  Hybrid · free tier · public pricing · self-serve

• Mailjet

  The best email marketing software that's built for devs and loved by marketers.

  Hybrid · free tier · public pricing · self-serve

• Amazon Simple Email Service

  Amazon Simple Email Service (Amazon SES) is a cloud-based email service provider that can integrate into any application for high-volume email automation.

  Usage · public pricing · self-serve

• Brevo

  Brevo is the most intuitive all-in-one customer engagement platform: email and SMS marketing, automation, CRM, live chat, and transactional email.

  Hybrid · free tier · public pricing · self-serve

• SendGrid

  Email at scale, proven deliverability, and so much more

  Hybrid · public pricing · self-serve

• MailerSend

  MailerSend is a powerful transactional email system built for developers but designed so non-tech teams can contribute without coding.

  Hybrid · free tier · public pricing · self-serve

Cloudflare Email Service alternatives · Cloudflare Email Service vs Mailgun · All Email APIs APIs

Each field above carries a numbered source - hover for a preview, click to jump here.

1. ↑Description: developers.cloudflare.com
2. ↑Pricing model: developers.cloudflare.com · developers.cloudflare.com
3. ↑Published pricing: developers.cloudflare.com · cloudflare.com
4. ↑Free tier: developers.cloudflare.com · cloudflare.com
5. ↑Free tier details: developers.cloudflare.com · developers.cloudflare.com
6. ↑Self-serve signup: developers.cloudflare.com · cloudflare.com
7. ↑Requires sales call: developers.cloudflare.com · cloudflare.com
8. ↑Enterprise plan: cloudflare.com · cloudflare.com
9. ↑Supported actions: developers.cloudflare.com · developers.cloudflare.com · developers.cloudflare.com
10. ↑Regions: infoq.com · blog.cloudflare.com
11. ↑Input types: developers.cloudflare.com · developers.cloudflare.com
12. ↑Output types: developers.cloudflare.com · developers.cloudflare.com
13. ↑Webhooks: developers.cloudflare.com · developers.cloudflare.com
14. ↑Sandbox: developers.cloudflare.com · developers.cloudflare.com
15. ↑SDK languages: developers.cloudflare.com
16. ↑MCP server: developers.cloudflare.com · developers.cloudflare.com
17. ↑SOC 2: cloudflare.com · cloudflare.com
18. ↑HIPAA: cloudflare.com · cloudflare.com
19. ↑GDPR: cloudflare.com · cloudflare.com
20. ↑ISO 27001: cloudflare.com · cloudflare.com
21. ↑PCI DSS: cloudflare.com
22. ↑Published SLA: cloudflare.com
23. ↑Rate limits: developers.cloudflare.com · developers.cloudflare.com
24. ↑Known restrictions: developers.cloudflare.com · developers.cloudflare.com

Every field change, who made it, and when - from our audited data pipeline and editors.

1. 2026-06-15 Score Agent Friendliness: 45 → 55
2. 2026-06-15 Score Docs Quality: 35 → 55
3. 2026-06-15 API Reference URL: (none) → https://developers.cloudflare.com/fundamentals/api/reference/sdks/
4. 2026-06-15 Robots Allows Agents: (none) → Yes
5. 2026-06-15 Has Structured Data: (none) → No
6. 2026-06-09 Best For: Prototypes and side projects — free to start, no sales call, Regulated or enter… → Prototypes and side projects - free to start, no sales call, Regulated or enter…
7. 2026-06-09 Scoring Methodology: Scores are computed deterministically from this profile's published, sourced fi… → Scores are computed deterministically from this profile's published, sourced fi…
8. 2026-06-09 Score Procurement Friction: (none) → 100
9. 2026-06-09 Best For: (none) → Prototypes and side projects — free to start, no sales call, Regulated or enter…
10. 2026-06-09 Scoring Methodology: (none) → Scores are computed deterministically from this profile's published, sourced fi…
11. 2026-06-09 Score Trust Readiness: (none) → 55
12. 2026-06-09 Score Docs Quality: (none) → 35
13. 2026-06-09 Score Setup Speed: (none) → 80
14. 2026-06-09 Score Pricing Transparency: (none) → 100
15. 2026-06-09 Score Agent Friendliness: (none) → 45
16. 2026-06-08 Llms Txt Present: (none) → Yes
17. 2026-06-08 Docs URL: (none) → https://developers.cloudflare.com/docs
18. 2026-06-08 Changelog URL: (none) → https://developers.cloudflare.com/changelog
19. 2026-06-08 Rendering: (none) → static
20. 2026-06-08 Llms Txt URL: (none) → https://developers.cloudflare.com/llms.txt
21. 2026-06-07 Summary Md: (none) → Cloudflare Email Service sends transactional email and routes inbound mail to W…
22. 2026-06-07 SDK Packages: Node.js, TypeScript → Node.js, TypeScript
23. 2026-06-07 Github Stars At: (none) → 2026-06-07T18:55:30.898Z
24. 2026-06-07 Github Stars: (none) → 4137
25. 2026-06-07 Base URL: (none) → https://api.cloudflare.com/client/v4
26. 2026-06-07 SDK Languages: TypeScript, Python, Go → Node.js, TypeScript
27. 2026-06-07 Fields Not Found: (none) → idempotency_supported
28. 2026-06-07 Launched At: (none) → 2025-09-25
29. 2026-06-07 Free Tier Limit: (none) → 3,000 emails/month
30. 2026-06-07 Price Basis: (none) → 1,000 emails
31. 2026-06-07 Starting Price Usd: (none) → 0.35
32. 2026-06-07 Data Retention Policy URL: (none) → https://www.cloudflare.com/privacypolicy/
33. 2026-06-07 Requires Verification: (none) → Yes
34. 2026-06-07 Error Format: (none) → vendor-specific
35. 2026-06-07 Quickstart URL: (none) → https://developers.cloudflare.com/email-service/get-started/send-emails/
36. 2026-06-07 MCP URL: (none) → https://mcp.cloudflare.com/mcp
37. 2026-06-07 SDK Packages: TypeScript, Python, Go → Node.js, TypeScript
38. 2026-06-07 Deprecation Policy URL: (none) → https://developers.cloudflare.com/fundamentals/api/reference/deprecations/
39. 2026-06-07 Stability: (none) → beta
40. 2026-06-07 API Style: (none) → rest
41. 2026-06-07 Auth Docs URL: (none) → https://developers.cloudflare.com/fundamentals/api/how-to/make-api-calls/
42. 2026-06-07 Auth Methods: (none) → api_key
43. 2026-06-07 Versioning Scheme: (none) → url
44. 2026-06-07 API Version: (none) → v4
45. 2026-06-07 SDK Packages: (none) → TypeScript, Python, Go
46. 2026-06-07 Capabilities: {"inbound":true,"analytics":true,"transactional":true} → {"inbound":true,"analytics":true,"transactional":true}

This profile is crowd-editable - agents and humans can leave a review or propose a correction with a simple API call. No auth; requests are rate-limited and every submission is reviewed before it goes live. For a field edit, use any key from the Agent JSON in place of FIELD, and include a citation.

curl -X POST https://apio.sh/api/feedback/cloudflare-email-service \
  -H 'Content-Type: application/json' \
  -d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'

curl -X POST https://apio.sh/api/suggest/cloudflare-email-service/FIELD \
  -H 'Content-Type: application/json' \
  -d '{"value":"corrected value","citations":[{"url":"https://source.example/page","excerpt":"supporting quote"}],"note":"what changed and why"}'

All the ways to contribute →