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Resend

Developer-first email API and SDK for transactional applications.

Reviewed by Editorial Board • Fact-Checked: 2026 Standards • Testing Status: Verified & Tested

Quick Keypoints

  • Builds and tests transactional emails using React components (React Email).
  • Exposes REST APIs, SMTP relays, and SDKs for multiple coding languages.
  • Monitors email delivery rates, bounces, and link click metrics.
  • Includes DKIM, SPF, and DMARC settings out of the box.

What is Resend?

Developer-first email API and SDK for transactional applications.

Resend is a developer-focused transactional and marketing email platform. It is built to replace legacy email APIs with a clean developer experience, modern logging, React component template compilation (React Email), and multi-region deliverability configurations.

Who Needs Resend?

Web developers, SaaS engineers, and software startups.

Primary Use Cases

  • Sending transactional emails (password resets, notifications) via React.
  • Monitoring delivery rates and bounce webhooks inside web applications.
  • Managing marketing email subscriber lists and drip campaigns.

Important Features

  • React Email: Builds responsive email designs using familiar React layouts.
  • Detailed Logging: Captures payload request bodies, response headers, and events.
  • Webhooks: Triggers events on delivered, bounced, opened, and clicked links.

Current Updates About Resend

  • Added OAuth 2.1 support with PKCE and released React Email 5.0 supporting Tailwind 4.
  • Current Version: v2026

Alternatives to Resend

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Pricing Plans

Plan Price
Free3,000 emails per month with a sending limit of 100 emails per day. $0
ProRemoves daily sending limits and provides access to unlimited domains. From $20/mo
Scale1,000 domains, 100 team members, urgent response SLA, and 30-day retention. From $90/mo
EnterpriseDedicated IP addresses, custom billing quotas, and priority support channels. Custom

Editorial Verification

Independent Testing

This review was audited under our 5-Pillar Testing Framework: Output Quality, UI/UX Ease, Pricing Transparency, Feature Depth, and Support.

Read Our Review Methodology →

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