Mailfab is a fast, privacy-focused temporary email service built for people and teams who need disposable inboxes without the friction of traditional email setup. It helps users create temporary email addresses for signups, verification codes, product testing, QA workflows, automation, and short-lived communication, while keeping their personal or business email address private. Whether you need a burner email for a one-time registration, a throwaway email for testing a form, or a temporary inbox for automated end-to-end tests, Mailfab provides a clean and practical workflow from the browser, API, and command line.
Unlike many public temporary mail websites that feel like shared inbox directories, Mailfab is designed around a more private and controlled experience. Users can open a guest inbox directly in the browser and receive emails without creating an account, making it useful for quick tasks such as receiving login codes, testing onboarding flows, or avoiding spam from unfamiliar websites. For more advanced use cases, signed-in users can manage temporary mailboxes, read messages, share inboxes or individual messages, configure API keys, and connect email workflows to developer tools.
Mailfab is especially useful for developers, QA engineers, product teams, and AI agents that need predictable email automation. Modern products often depend on email verification, magic links, password reset flows, transactional notifications, and invitation emails. Testing these workflows with a real personal inbox is messy, slow, and hard to automate. Mailfab solves this by offering temporary email addresses that can be created, checked, waited on, read, and deleted through a simple API and CLI. This makes it a strong fit for Playwright tests, automated QA pipelines, CI workflows, internal tools, and product experiments where email behavior needs to be verified reliably.
The platform also supports sending email from temporary addresses when enabled by the administrator, using Resend as the underlying sending provider. This allows teams to test both receiving and sending flows in controlled environments. Webhook support makes it possible to receive notifications when new emails arrive, including integrations such as Feishu group notifications. These features make Mailfab more than a basic temp mail website: it can act as a lightweight email testing API, disposable inbox service, and automation-friendly mail workflow tool.
Mailfab is built on a modern serverless stack using Next.js and Cloudflare Workers, with Cloudflare Email Workers for receiving mail, D1 for database storage, and KV for configuration. This architecture makes the project lightweight, scalable, and suitable for self-hosting. Teams that want more control over privacy, domains, data retention, or internal QA infrastructure can deploy their own instance and connect custom domains through Cloudflare Email Routing. For open-source users and technical teams, this makes Mailfab a practical alternative to closed hosted temporary email services.
The user experience is intentionally simple. A visitor can create a temporary inbox, copy the generated address, refresh incoming messages, and create a new random address when needed. The interface prioritizes the actual inbox workflow instead of hiding the tool behind marketing pages. For authenticated users, Mailfab adds a more complete mailbox console with active inbox management, message reading, sharing, API key configuration, webhook settings, send permissions, and administrative controls.
Mailfab can be described as a temporary email service, disposable email API, burner email tool, throwaway email inbox, temp mail platform, Mailinator alternative, email testing API, and self-hosted temporary inbox system. It is useful for protecting personal privacy, reducing spam exposure, testing account registration flows, validating email delivery, automating verification emails, and building reliable product QA workflows.
For individuals, Mailfab offers a quick way to receive short-lived emails without exposing a real address. For developers and teams, it provides automation-ready temporary inboxes that fit naturally into testing and deployment pipelines. For self-hosters, it offers a Cloudflare-native architecture that can be deployed with minimal server maintenance. Mailfab brings together the speed of disposable email, the control of self-hosting, and the reliability needed for modern software testing.
