Zyntra is a disposable email platform built for QA teams and test automation workflows.
It helps you capture, assert, and validate email content as part of your end-to-end tests — with no manual setup or flaky workarounds.
Use it to:
• Generate unlimited private inboxes automatically, with one line of code
• Trigger real emails (OTP, password resets, invites) and read them via API or SDK
• Prevent test emails from leaking to real users — all inboxes are private by default
• Run isolated tests in CI/CD with no collisions or cleanup
• Validate your entire email-based flow, just like in production (real SMTP)
Zyntra works with any testing framework or language and includes an official Node.js SDK for fast integration. Ephemeral inboxes are retained for 24 hours; persistent ones for at least 7 days.
Built by QA, for QA — Zyntra helps you stop babysitting test environments and focus on verifying what matters.
Zyntra provides disposable, API-accessible email inboxes for QA and test automation workflows.
- for
- QA engineers and developers writing end-to-end tests
- pricing
- freemium
works withNode.js SDKPlaywrightCypressany testing framework or language
Key features
6 features of Zyntra
- Instant inbox creation — Generate private test mailboxes with a single API call or click.
- API/SDK email retrieval — Fetch email content, subjects, OTPs etc. via Node.js SDK or REST API.
- Temporary & permanent mailboxes — Ephemeral inboxes (24h) and persistent ones (30-90 days) for different testing needs.
- CI/CD isolation — Unique inbox per test run prevents collisions and requires no cleanup.
- Web email viewer — View received test emails in a dashboard without leaving your code.
- Retention controls — Choose 7-day retention for temporary or up to 90-day for permanent mailboxes.
Use cases
- Automate OTP extraction in Playwright or Cypress tests
- Validate password-reset email flows in CI pipelines
- Share a persistent inbox among QA team for manual sign-up testing
- Isolate email steps per test run to avoid flaky E2E failures
Zyntra vs alternatives
 Zyntra |  GetTestMail |  Maildroppa |  BuildShip |  Hookdeck | |
|---|---|---|---|---|---|
| Best for | Disposable email inboxes for automated testing | Quick temporary email API | Email marketing automation | Visual backend creation | Event-driven API handling |
| Pricing | Freemium | Subscription | Free | Free | Free |
| DevHunt upvotes | 7 | 23 | 27 | 118 | 30 |
| Launched | Apr 2025 | Jan 2023 | Oct 2024 | Jan 2023 | Mar 2024 |
- Zyntra vs GetTestMail: Provides a simple temporary email API but lacks permanent inboxes and built-in retention tiers.
- Zyntra vs Maildroppa: Focused on email marketing automation rather than test-specific disposable inboxes.
- Zyntra vs BuildShip: AI visual backend builder, unrelated to email testing.
- Zyntra vs Hookdeck: Event gateway for APIs, not an email inbox service.
Zyntra FAQ
Do I need a credit card to start using Zyntra?+
No, the free plan is always free and does not require a credit card.
How long are emails retained?+
Temporary inboxes keep emails for 24 hours, permanent mailboxes retain for at least 7 days (30-90 days depending on plan).
Can I use Zyntra with my existing test framework?+
Yes, Zyntra works with any testing framework or language and provides an official Node.js SDK; it’s used with Playwright, Cypress, etc.
What limits does the free tier have?+
The free tier allows 150 incoming emails per month, 500 API calls, and 7-day retention for permanent mailboxes.
Is there a way to retrieve emails via a UI?+
Yes, Zyntra includes a web email viewer dashboard for manual inspection of test messages.
Summarized by DevHunt from zyntra.app · Sep 28, 2026. Details may change; check the official site.
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