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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
Key features
- 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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