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Introduction

What is Zyntra?​

Zyntra is a private, API-driven temporary email service designed specifically for developers, QA engineers, and testers. It allows you to create and manage temporary email addresses programmatically, making it an ideal tool for testing email workflows in end-to-end automation, CI/CD pipelines, and staging environments.

Unlike public disposable email services, Zyntra is fully private. Every mailbox you create belongs only to you—accessible exclusively through your API key or the web UI. You can log in at app.zyntra.app to manage your mailboxes. No one else can see or interact with your test emails.

Additionally, Zyntra is a real mail server, not a mock or fake email service. This means emails go through the same processing as they would for actual users, ensuring that your tests reflect real-world email behavior.

Who is Zyntra For?​

Zyntra is built for professionals who need quick, automated access to temporary emails while maintaining privacy and reliability. Our primary users include:

  • Test Automation Engineers – Run automated tests for signups, email verification, password resets, and other email-triggered flows.
  • Manual Testers – Manually verify email interactions during regression or exploratory testing.
  • Developers – Debug email-related features in staging environments before pushing to production.
  • QA Teams – Manage test emails across multiple projects in a structured, secure environment.

If you've ever struggled with setting up reliable test email accounts—or if public disposable email services don’t meet your privacy needs—Zyntra is built for you.

Why Use Zyntra?​

✅ Fully Private​

Every mailbox you create is yours alone. Emails are never shared or exposed to other users. You can access them only via your API key or the Zyntra web UI. Manage your mailboxes directly at app.zyntra.app.

⚡ Built for Automation​

Zyntra’s API allows you to programmatically create, delete, and fetch emails, making it a perfect fit for end-to-end and integration testing in automated workflows.

🚀 Unlimited Mailboxes​

Unlike other services that limit the number of temporary email addresses, Zyntra lets you create unlimited mailboxes within your team.

🔄 Real Email Server (Not Just a Mock)​

Zyntra operates as a real SMTP/IMAP-compatible mail server—not just an email capture tool. This ensures your tests accurately simulate real user interactions.

🎯 Reliable for Real-World Testing​

Many public temporary email services delete messages too quickly, making them unreliable for testing. Zyntra ensures predictable behavior so your tests won’t break unexpectedly.

How It Works: Teams & Mailboxes​

At the core of Zyntra is a team-based structure. Here’s how it works:

  1. A team is created automatically during signup – No extra setup required. You can sign up or log in at app.zyntra.app.
  2. You generate email addresses – Within your team, you can create an unlimited number of temporary mailboxes.
  3. You receive emails – Fetch emails programmatically using the API or access them from the web UI.
  4. You delete mailboxes when needed – Mailboxes can be removed when they’re no longer needed, keeping your test environment clean.

💡 Example: Suppose you’re testing a signup flow for a web app that requires email confirmation. With Zyntra, you can:

  • Create a temporary email on demand.
  • Trigger the signup process.
  • Fetch the confirmation email from Zyntra’s API or web UI.
  • Extract the verification link and complete the signup automatically.

Real-World Use Cases​

📩 Testing Email Verification Flows​

Automate signup processes by generating temporary email addresses, receiving verification emails, and extracting confirmation links in your test scripts.

🔐 Reset Password Scenarios​

Verify that password reset emails are correctly sent and that the reset links work as expected in your automated tests.

🛠 End-to-End CI/CD Testing​

Use Zyntra in your CI/CD pipeline to test email-based workflows every time you deploy a new feature.

🤖 Manual Testing​

Create test email accounts without needing to manage actual inboxes or worry about cleanup.

Next Steps​

🚀 Ready to get started? Head over to Getting Started for a step-by-step guide on creating your first mailbox and retrieving emails using the API!