Why Mailinator?
Explore our product guides and API documentation to learn how to test email, SMS, and authentication workflows with Mailinator.
Mailinator
Mailinator is an email, SMS, and authentication workflow testing platform for developers, QA teams, CI/CD pipelines, and AI agents. Whereas most email systems are built around the concept of "account/inbox ownership", Mailinator is built around "entire domain-inbox ownership". This allows teams to have instant access to millions of email addresses for system and automation testing of their software.
Learn more about Private Mailbox.
Mailinator also provides a "public" domain for personal use where all email addresses (@mailinator.com) are completely public and usable by anyone. Public inboxes are useful for quick, non-sensitive testing, but Mailinator is not only a public disposable email service. Private domains, API access, SDKs, webhooks, SMS, and SSO/OIDC testing are designed for repeatable automation workflows.
Learn more about Public Mailbox.
Email, SMS, and Authentication Workflow Testing
Developers and testing teams can automatically test email, SMS, and authentication workflows like 2FA verifications, sign-ups, password resets, magic links, transactional notifications, and SSO login flows with trillions of inboxes at your fingertips.
Whether you test using an API tool like Postman, write code in a framework like Cypress or Playwright, or connect an AI agent through CLI or MCP tooling, Mailinator closes the loop on workflow testing.
Learn more about our API, SDKs, Private Mailbox, Universal IDP, AI Agents, or start a free trial.