With the Custom Device Previewing tool (currently in beta), you can preview exactly how your email will appear across different devices, email clients, and specific subscriber scenarios, all within a single, unified view.
To use the custom device previewer:
- In the email editor, click Preview.
- Customize your view:
- Device Type: Switch between Mobile and Desktop views to ensure responsive design.
- Dark Mode: Toggle Dark Mode on to see how your colors and images adapt for subscribers using dark-themed email clients.
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Subscriber Data: If your email uses dynamic content or personalization, you can:
- Preview as a random subscriber: Quickly see how variables populate with live data.
- Search for a specific subscriber: Enter an email address to see exactly what a specific person in your list will receive.
- Event Trigger Data: For journey emails, select a specific event (e.g., "Add to Cart" or "Purchase") to see how product-specific dynamic blocks (like product names or images) will render.
- Click Additional Previews at the bottom of the left panel to see how your email will render in different inboxes
- Customize which inboxes you’d like to preview
- Use Quick Select settings to maintain your common selections
- The image below shows which preview combinations are loaded by default and/or when you select “most common”
- Apple Mail - iPhone 17 Pro Max - Light Mode (iOS26)
- Apple Mail - iPhone 17 Pro Max - Dark Mode (iOS26)
- Gmail App - Pixel 9 - Light Mode (Android 15)
- Outlook App - iPhone13 - Light Mode (iOS 15)
- Gmail.com - Chrome - Light Mode (Windows 10)
- Apple Mail - Light Mode (MacOS 13)
Preview Allotment:
You receive 100 previews per month, resetting on the 1st of each month. Unused previews do not carry over, and additional previews cannot be purchased. If a preview fails due to an error, it will be automatically refunded so it doesn't count toward your monthly total.