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Mailfox vs Zyntra
Zyntra provides an API to receive emails for testing, whereas Mailfox monitors delivery of transactional emails.
Which to pick
Pick Mailfox if you want…
- Instant alerts for bounced transactional emails
- Integrations with Mailgun, SendGrid or Mailjet (on Mailfox's list, not Zyntra's)
Pick Zyntra if you want…
- Disposable email inboxes for automated testing
- Email receipt API for tests
- A free plan to start with
- Integrations with Node.js SDK, Playwright or Cypress (on Zyntra's list, not Mailfox's)
Side by side
- What it is
- Mailfox:Mailfox monitors transactional email delivery via webhooks and sends instant alerts for bounces and failures.
- Zyntra:Zyntra provides disposable, API-accessible email inboxes for QA and test automation workflows.
- Best for
- Mailfox:Instant alerts for bounced transactional emails
- Zyntra:Disposable email inboxes for automated testing
- Who it’s for
- Mailfox:Developers and businesses that rely on transactional email notifications.
- Zyntra:QA engineers and developers writing end-to-end tests
- Pricing
- Mailfox:Paid
- Zyntra:Freemium
- Plans
- Mailfox:—
- Zyntra:Free $0
- Works with
- Mailfox:Mailgun, SendGrid, Mailjet, Brevo, Resend, Postmark
- Zyntra:Node.js SDK, Playwright, Cypress, any testing framework or language
Mailfox features
- No-code webhook integration. Connect Mailgun, SendGrid, Mailjet, Brevo, Resend, and Postmark in minutes without API keys.
- Real-time failure notifications. Receive instant alerts when an email bounces, is marked as spam, or fails temporarily.
- Unlimited event tracking. Track any number of email events without caps.
- Multi-provider support. Use a single Mailfox webhook URL with multiple email providers simultaneously.
- Privacy-focused data storage. Only event metadata is stored; email content is never saved.
- Simple setup. One-minute configuration via provider webhook settings.
Zyntra 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.
Mailfox vs Zyntra FAQ
Is Mailfox or Zyntra free?+
Mailfox is paid. Zyntra has a free plan and paid plans.
Do Mailfox and Zyntra integrate with the same tools?+
Their integration lists don't overlap: Mailfox lists Mailgun, SendGrid, Mailjet, Brevo and 2 more; Zyntra lists Node.js SDK, Playwright, Cypress and any testing framework or language.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.