# SendPanda > Email API for developers with transactional email, newsletters, a visual editor and an inbox for your own domain. Start with 1,000 emails a month free. ## Product - [Pricing](https://sendpanda.email/pricing): plans from $9 a month; Free is 1,000 emails a month - [Inbox](https://sendpanda.email/inbox): receive, read and reply to mail at your own domain - [AI agents](https://sendpanda.email/agents): set up and use SendPanda from Claude Code, Cursor, the CLI or MCP ## Documentation - [Documentation](https://sendpanda.email/docs): Everything you need to build with SendPanda. - [Quickstart](https://sendpanda.email/docs/quickstart): Send your first email from your server. - [Domain setup](https://sendpanda.email/docs/domains): Publish and verify DKIM, SPF and return-path records. - [Authentication & API keys](https://sendpanda.email/docs/api-keys): Credentials, permissions and project scope. - [Sending email](https://sendpanda.email/docs/sending): SDK and REST sends, idempotency, search and pagination. - [Delivery & tracking](https://sendpanda.email/docs/delivery): Message states, suppressions and warm-up. - [Webhooks](https://sendpanda.email/docs/webhooks): Raw-body signatures, events, retries and secret rotation. - [Templates & variables](https://sendpanda.email/docs/templates): Version, preview, publish and send reusable templates. - [Email studio](https://sendpanda.email/docs/email-studio): Design emails visually on desktop and mobile. - [Images & uploads](https://sendpanda.email/docs/images): Hosted images, file types and storage limits. - [Receiving email](https://sendpanda.email/docs/receiving): Receiving domains, private mailboxes and incoming messages. - [Mailbox forwarding](https://sendpanda.email/docs/forwarding): Confirmed destinations, filtering and forwarding limits. - [Audiences & broadcasts](https://sendpanda.email/docs/marketing): Subscriber consent, campaigns, scheduling and reports. - [JavaScript & TypeScript](https://sendpanda.email/docs/sdk): Install and configure the official Node.js SDK. - [Command-line interface](https://sendpanda.email/docs/cli): Sign in and manage projects from your terminal. - [AI agents & MCP](https://sendpanda.email/docs/mcp): Connect an agent through OAuth, API keys or access tokens. - [Framework & DNS guides](https://sendpanda.email/docs/guides): Next.js, Node.js, React Email and email authentication. - [Projects, teams & access](https://sendpanda.email/docs/teams): Project boundaries, invitations and mailbox assignments. - [Billing & limits](https://sendpanda.email/docs/billing): Recipient quotas, inbox storage and mailbox add-ons. - [API reference](https://sendpanda.email/docs/api-reference): Browse endpoints and schemas from the OpenAPI contract. - [Errors & troubleshooting](https://sendpanda.email/docs/errors): Resolve authentication, DNS, quota and delivery problems. - [Integration reference](https://sendpanda.email/docs/integration): Read the complete integration guide in one place. - [Send email with Next.js](https://sendpanda.email/docs/guides/send-email-nextjs): Send transactional email from a Next.js server action or route handler with the SendPanda SDK, keep your API key server-side and avoid duplicate sends. - [Send email from Node.js and Express](https://sendpanda.email/docs/guides/send-email-nodejs): Install the SendPanda SDK, send email from Node.js with ESM or CommonJS, add it to an Express route and handle timeouts, retries and errors. - [Send React Email templates](https://sendpanda.email/docs/guides/send-react-email): Render a React Email component to HTML on your server and send it through the SendPanda API, with a plain-text fallback. - [Verify email webhooks in Node.js](https://sendpanda.email/docs/guides/verify-email-webhooks): Authenticate SendPanda webhook events with the raw request body, rotate signing secrets without downtime and deduplicate deliveries by event ID. - [Avoid duplicate emails with idempotency keys](https://sendpanda.email/docs/guides/email-idempotency-keys): How idempotency keys prevent duplicate transactional emails when a request times out or a job retries, and how to choose a key for each business event. - [SPF, DKIM and DMARC explained for developers](https://sendpanda.email/docs/guides/spf-dkim-dmarc-explained): What SPF, DKIM and DMARC each prove, how alignment works, what the records look like and a safe order for rolling out DMARC. - [SPF too many DNS lookups](https://sendpanda.email/docs/guides/spf-too-many-dns-lookups): What the SPF 10-lookup limit counts, why a record returns permerror, and how to use the SPF checker without treating its inventory as a pass or fail. ## Comparisons - [Resend Alternative and Pricing](https://sendpanda.email/vs/resend): A Resend alternative. October 2026: $35 for 100,000 emails, or $115 with marketing. SendPanda Growth is $29 with newsletters on the same plan. - [Amazon SES Alternative and Pricing](https://sendpanda.email/vs/amazon-ses): An Amazon SES alternative without an AWS account. October 2026: about $10 of SES for 100,000 emails, or $29 on SendPanda with a dashboard, editor and inbox. - [Postmark Alternative and Pricing](https://sendpanda.email/vs/postmark): A Postmark alternative. October 2026: Postmark Pro is about $134 for 100,000 emails. SendPanda Growth is $29, with newsletters and an inbox included. - [SendGrid Alternative and Pricing](https://sendpanda.email/vs/sendgrid): A SendGrid alternative. October 2026: Essentials is $34.95 for 100,000 emails. SendPanda Growth is $29, and newsletters are on the same plan. - [Mailgun Alternative and Pricing](https://sendpanda.email/vs/mailgun): A Mailgun alternative. October 2026: Mailgun Scale is $90 for 100,000 emails. SendPanda Growth is $29, with the newsletter and an inbox included. - [Resend vs Postmark Pricing](https://sendpanda.email/vs/resend-vs-postmark): Resend vs Postmark on October 2026 prices. At 100,000 emails Resend is $35 and Postmark Pro is about $134. SendPanda Growth is $29. - [Resend vs Amazon SES Pricing](https://sendpanda.email/vs/resend-vs-amazon-ses): Resend vs Amazon SES on October 2026 prices. SES is about $10 plus your time for 100,000 emails. Resend is $35. SendPanda Growth is $29. - [SendGrid vs Postmark Pricing](https://sendpanda.email/vs/sendgrid-vs-postmark): SendGrid vs Postmark on October 2026 prices. Essentials is $34.95 for 100,000 emails. Postmark Pro is about $134. SendPanda Growth is $29. - [Mailgun vs Amazon SES Pricing](https://sendpanda.email/vs/mailgun-vs-amazon-ses): Mailgun vs Amazon SES on October 2026 prices. Mailgun Scale is $90 for 100,000 emails. SES is about $10 plus your time. SendPanda Growth is $29. ## Pricing - [Resend Pricing (October 2026)](https://sendpanda.email/pricing/resend): Resend pricing in October 2026: $35 for 100,000 transactional emails, or $115 with a managed newsletter. SendPanda Growth is $29 for the same send volume. - [Postmark Pricing (October 2026)](https://sendpanda.email/pricing/postmark): Postmark pricing in October 2026. Pro is $16.50 for 10,000 emails plus $1.30 per extra 1,000, about $134 at 100,000. SendPanda Growth is $29. - [SendGrid Pricing (October 2026)](https://sendpanda.email/pricing/sendgrid): SendGrid pricing in October 2026: Essentials is $34.95 for 100,000 emails. Newsletters are separate. SendPanda Growth is $29 with them included. ## Use cases - [Transactional Email and Newsletters on One Plan](https://sendpanda.email/use-cases/transactional-and-newsletter): Send transactional email and a newsletter on one SendPanda plan. At 110,000 recipients, Growth with overage is $34. A Resend managed pair is $115. - [Support Inbox on Your Domain](https://sendpanda.email/use-cases/support-inbox): A support inbox on your domain: read and reply in SendPanda, forward to Gmail or Outlook, and receive the same mail by webhook. It is not an IMAP mailbox. - [Password Reset and Magic Link Emails](https://sendpanda.email/use-cases/password-reset-and-magic-link): Send password-reset and magic-link email from your app with an idempotency key, a verified domain and the SendPanda SDK. Includes a Next.js server action. ## Free tools - [SPF checker](https://sendpanda.email/tools/spf-checker): Look up your SPF record, explore included senders and find common configuration problems. - [DKIM checker](https://sendpanda.email/tools/dkim-checker): Look up the DKIM public key for a selector, including a CNAME to the host that publishes it. - [DMARC checker & generator](https://sendpanda.email/tools/dmarc-checker): Understand your published DMARC policy or generate a monitoring record for your domain. - [HTML email previewer](https://sendpanda.email/tools/html-email-preview): Paste your email HTML, preview desktop and mobile widths, and download your source. All in your browser.