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Testing overview

Once you’ve created an email and added forms, proper testing ensures your recipients see exactly what you intended. While the preview feature inside the Kinetic template builder offers a quick way to check your template during development, the end result can differ from what you see in the preview panel, as we cannot simulate email inboxes perfectly.
We highly recommend sending test emails to verify your emails look exactly as intended across different email clients.

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Best testing practices

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Send final tests through Klaviyo

To be 100% sure that users receive the email design you intended, send your final tests via Klaviyo to remove any platform-specific variables from your tests. This ensures your test environment matches your production environment exactly.

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Understanding email versions

Your interactive email contains multiple versions that display based on the recipient’s email client:
  • AMP version - Interactive version for Gmail
  • Apple Mail version - Interactive version for Apple Mail
  • Fallback version - Static version for non-interactive clients
Important: The sender address does not influence which email template you see, only which inbox you open the email in.For example:

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Testing checklist

We recommend covering all mime types in your tests on both mobile and desktop devices.

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AMP version testing

Where to test: Gmail (desktop and mobile app)
  • Open your test email in Gmail on desktop + an Android device. If possible, check via the Gmail app on iOS as well.
  • Check that interactive elements display correctly.
  • Test form functionality such as product recommendations and styling.

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Apple Mail testing

Where to test: Apple Mail (macOS and iOS)
  • Open your test email in Apple Mail on Mac + iPhone/iPad.
  • Check that interactive elements display correctly.
  • Test form functionality such as product recommendations and styling.

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Fallback version testing

Where to test: Outlook, ProtonMail, web.de
  • Open your test email in any of these clients to see the static fallback.
  • Verify the fallback design.
  • Test that click-through to web version works properly.

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Testing workflow

Follow this systematic approach to thoroughly test your templates:
  1. Preview in Kinetic - Use the preview panel for quick checks while building your template. This gives you an immediate sense of layout and design.
  2. Send test from Kinetic - Send initial test emails directly from the Kinetic builder to catch any immediate issues with interactivity.
  3. Test in Klaviyo - Push your template to Klaviyo and send test emails from there to ensure platform compatibility.
  4. Test across clients - Open the same test email in Gmail, Apple Mail, and Outlook to verify all versions display correctly.
  5. Test on mobile - Verify responsive design on actual mobile devices, not just browser emulators.
  6. Final validation (optional) - Send one final test through your Klaviyo flow or a test campaign to confirm everything works in your production environment.
Create email accounts across different providers (Gmail, Outlook, Apple) specifically for testing to streamline your QA process.

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Next steps

Creating an AB test

Learn more about how to set up an AB test in Klaviyo to compare performance between interactive and static variations.