Use Preview Mode in the Email Composer to see how your message will appear across devices and with different personalization values applied. This helps you confirm layout, styling, images, and dynamic content before sending your campaign.
Quick Reference (Advanced Users) – Click to Expand
- In the Email Composer, click Review & Send.
- Select Preview in the top-right corner.
- Switch between Desktop and Mobile views.
- Use the Personalization preview drop-down to test dynamic content.
- Use Dark Mode Preview (if enabled) to see how your message adapts.
- Return to the Design tab to make changes, then preview again.
Try it like this: After designing your message, open Preview and check both desktop and mobile views. Switch the personalization preview to a few contacts to ensure their fields, conditional content, and fallback values appear correctly. Finish by toggling Dark Mode Preview to confirm your logo and text remain readable.
Open Preview Mode
- Open your message in the Email Composer.
- Click Review & Send in the upper right.
- Select Preview.
Switch between desktop and mobile previews
Use the device toggle at the top of the preview panel to check how your layout behaves on different screen sizes. This helps you confirm stacking, spacing, image scaling, and readability.
- Desktop Preview – full-width rendering
- Mobile Preview – narrow viewport to test stacking and button sizing
Preview personalization and dynamic content
Use the Personalization preview drop-down to choose a contact and see how their fields appear in the message. This is especially useful when testing:
- Personalized greetings
- Dynamic blocks or conditional content
- Fallback values
- Account-based or CRM personalization fields
Tip: If personalization looks blank, confirm that your preview contact contains the required field values.
Preview your message in Dark Mode
You can view how your message adapts when inboxes invert colors or modify backgrounds.
To learn more, see Dark Mode.