Zyntra

About Zyntra

Zyntra is an API-driven temporary email service for programmatic creation and management of test mailboxes. It is built for test automation engineers, manual testers, developers, and QA teams who need email accounts for testing signup flows, email verification, password resets, and other email-triggered workflows, including in CI/CD pipelines and staging environments.

Mailboxes are private to the creating team, accessible only through an API key or the web UI at app.zyntra.app, and are not shared with other users. A team is created automatically on signup, and users can generate an unlimited number of mailboxes within that team, then fetch, monitor, or delete them via the API or web interface.

Unlike mock or capture-only tools, Zyntra operates as a real SMTP/IMAP-compatible mail server, so emails are processed the same way as they would be for actual end users. Documentation includes a getting started guide, SDKs, an MCP integration, and a Swagger UI/API reference.

Key features

• Programmatic creation, deletion, and fetching of temporary email addresses via API
• Private mailboxes accessible only via API key or web UI
• Unlimited mailboxes per team
• Real SMTP/IMAP-compatible mail server, not a mock
• Team-based structure with automatic team creation on signup
• MCP integration support

Frequently asked questions