email
Resend
The email API for developers — built by the Nodemailer team
Modern transactional email API. React Email for templates, broadcast emails, webhooks, domain verification, suppression list. Built-in deliverability tooling.
Pricing
| Tier | Price | Notes |
|---|---|---|
| Free | Free | 3,000 emails/month, 100 emails/day. 1 custom domain. Ideal for side projects. |
| Pro — 50k | $20/mo | 50,000 emails/month. 10 custom domains. Priority support. |
| Pro — 100k | $35/mo | 100,000 emails/month. 10 custom domains. |
| Scale — 100k+ | $90/mo | Tiered from 100k → 2.5M emails/month. Dedicated IP add-on available. |
| Scale — 2.5M | $1150/mo | 2.5M emails/month. |
| Enterprise | Custom | 3M+/month, dedicated IP included, SSO, custom contract. |
Limits
| Tier | Metric | Value | Notes |
|---|---|---|---|
| — | dedicated ip price | $30/month add-on | Dedicated IP (Scale+) |
| — | deliverability | Automatic DKIM/SPF/DMARC setup | Domain auth |
| — | supported regions | us-east-1, eu-west-1, sa-east-1, ap-northeast-1 | Data regions |
| free | custom domains | 1 domains | Free — custom domains |
| free | emails per day | 100 emails/day | Free — daily emails |
| free | emails per month | 3000 emails/month | Free — monthly emails |
| pro-20 | custom domains | 10 domains | Pro — custom domains |
| pro-20 | emails per month | 50000 emails/month | Pro 50k — monthly emails |
Features
- Audiences — Contact list management with custom fields.
- Batch Send — Send up to 100 emails in one API call.
- Broadcasts — Bulk email campaigns with audiences, A/B testing, analytics. · docs
- Dedicated IP — Add-on for high-volume senders. Auto warmup.
- Domains — DKIM/SPF/DMARC auto-verification. Per-domain analytics.
- Idempotency — Prevent duplicate sends with Idempotency-Key header.
- Logs + Analytics — Full email logs, delivery heatmap, events table.
- React Email — OSS library (3M+ downloads) to compose emails in React/JSX. · docs
- Scheduled Send — scheduledAt parameter for future delivery.
- Send API — POST /emails endpoint to send. Supports attachments, scheduled send, idempotency keys.
- Suppressions — Auto-managed bounce + complaint list. API to add/remove.
- Webhooks — Email lifecycle events: sent, delivered, bounced, complained, opened, clicked.
Developer interfaces
| Slug | Name | Kind | Version |
|---|---|---|---|
| sdk-react-email | react-email | sdk | 4.x |
| cli | Resend CLI | cli | 0.x |
| sdk-go | resend-go | sdk | 2.x |
| sdk-node | resend-node | sdk | 4.x |
| sdk-php | resend-php | sdk | 0.x |
| sdk-python | resend-python | sdk | 2.x |
| rest-api | Resend REST API | rest | v1 |
| sdk-ruby | resend-ruby | sdk | 0.x |
| smtp | SMTP Relay | other | — |
| webhooks | Webhooks (Svix) | other | — |
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