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Use Inbox Preview to see how your email displays in different inboxes

Article: 000011137
Updated: August 13, 2026

Preview how your email renders on desktop and mobile in the most popular email clients using Inbox Preview

Inbox Preview is an add-on you can purchase for a monthly charge of $10 USD that lets you preview your emails in a variety of email clients, including desktop and mobile apps, and even dark mode for mobile devices. You get 25 previews per month. Each email client you select counts as one preview.

 

Megaphone IconBe a better marketer: Want to learn more about email design? See more best practices and check out how to design the perfect email newsletter!

 


How Inbox Preview works

When you've finished designing your email and you're almost ready to send, previewing it can help you catch content errors, typos, and design issues that you can correct before sending it to your contacts. Inbox Preview takes it a step further and lets you see how your email displays in the email clients that matter most to you. Every month, you get a total of 25 previews:

  • Just clicking the Inbox tab doesn't count as a preview; you need to click the Generate Preview button before any previews are used.
  • You can see the total number of previews you have remaining for the month in the upper-right corner of the Inbox tab.
  • Each email client you select counts as one preview, and you can select as many or as few as you need.
  • The preview count at the bottom of the Inbox tab tells you how many previews you're about to use and how many previews you'll have left for the rest of the month afterward.
  • Once you’ve used your 25 previews in the calendar month, you're unable to use Inbox Preview until the first of the next month.
  • You're unable to purchase additional previews, and unused previews don't roll over to the next month.

    Preview overlay with Inbox tab selected, Previews available count, previews selected, count for previews used and remaining, and Generate preview button

 

Compatible email clients

Mobile apps/devices:

  • Android Gmail app
  • Android Gmail app (dark)
  • Android Outlook app
  • Android Outlook app (dark)
  • iPhone Mail
  • iPad Mail
  • iPhone Gmail app
  • iPhone Gmail app (dark)

 

Desktop apps:

  • Apple Mail (Mac)
  • AOL
  • Comcast
  • Gmail
  • Outlook
  • Yahoo

 

Light Bulb IconDid you know? You can get an idea of how many of your contacts are using AOL, Comcast, Gmail, Outlook, and Yahoo by searching by email domain. Then you'll know which previews are the most meaningful to select!

 

Add the Inbox Preview add-on

To add Inbox Preview to your account:

  1. From your account settings, click the Add-ons tab.
  2. Scroll down to the Inbox Preview add-on and click the Add to plan button.

    My account page with Add-ons tab selected, INbox Preview section, and Add to plan button

  3. Check the box to agree to the terms and conditions and authorize payment, then click the Accept button.

    Inbox Preview payment screen with "I agree and authorize payment" option selected, Accept button, and terms and conditions statement

 

Exclamation Point IconImportant: The Inbox Preview add-on charge is listed as a separate line item on your monthly invoice. If you wish to remove the add-on from your account, please contact our Support team.

 

 

Use Inbox Preview

When you've finished designing your email and you're almost ready to send, giving your email a preview can help you find errors and design issues that can be corrected before you send it to your contacts.

  1. From within the email editor, click Preview & Test > Preview.

    Email editor with Preview & Test drop-down menu expanded and Preview option selected

  2. Click the Inbox tab.
  3. Select the views you want to preview. Each option you select counts as one preview.
  4. Click the Generate preview button.

    Preview overlay with Inbox tab selected, iPhone/iPad, Android, and Desktop options selected, and Generate preview button

  5. Click on the email client names to see how your email looks in each inbox and look for common design issues. Use the scrollbar next to a desktop preview or the controls next to a mobile preview to view the full length of your email.
  6. (Optional) For each desktop email client, you can click the Images and Blocked toggle to see how the email looks if images are disabled.
  7. When you’re finished, click the X in the upper-right corner of the overlay to return to your email draft and correct any design issues before sending it to your contacts. After you generate previews on the Inbox tab, you can click the Desktop tab and Mobile tab without losing them. However, once you close out of the Preview overlay, your previews aren't saved, and you'll need to generate a new preview.
    Tip: If you need something to refer back to, you can always take a screenshot of your preview.

    Inbox Preview Email Client Options and Blocked Images toggle

 

Light Bulb IconDid you know? Our Inbox preview is powered by Litmus. If your email preview isn't displaying as expected, for example, if all the images are missing and you don't have the Blocked toggle selected, you can check for issues with email previews on the Litmus status page.

 

 

Look for issues in your email design

Every email client displays emails differently. Using Inbox Preview helps you see potential design issues across the most commonly used email clients so you can make the necessary edits to your content.

 

Email length

Some email clients clip or distort your email message if it exceeds a certain size. Email recipients scan emails quickly to see if the content is interesting before moving on, so the more they have to scroll, the less interested they become. If the bottom of the email gets cut off in several previews, it's best to shorten your message.

Inbox Preview with long email message clipped

 

Call-to-action placement

Make sure your main call-to-action link or button is clearly visible in each preview so that your contacts see it at first glance. Having a single call-to-action helps keep your email short, too!

Inbox Preview with call-to-action placement

 

Appearance when images don't display

Depending on the email client and its image settings, some recipients may not see the images in your email. For example, Comcast doesn't display images, and Outlook hides images until the recipient grants permission to view them. To make sure your message still works without images, each desktop option in Inbox Preview has a toggle switch so you can view what your email looks like with images and when they are blocked. Make sure to add a detailed image description to each image in your template so your contacts know what they're missing when your images don't display!

Inbox Preview of Comcast desktop app with Blocked option selected and email preview displaying image placeholders and alt-text in place of the images

 

Font style

Not all email clients support the same fonts. When a font isn't supported, it's swapped for a supported one, which can change the branding and style of your email. If your fonts look different or odd, check your template in the editor to make sure you're using a web-safe font. If you chose a font from the "Other" category, consider changing it to one of the first nine fonts in the list to avoid display issues.

  • Example of a font from the "Other" category displaying as intended:

    Inbox Preview with non-web-safe font on desktop view

  • Example of how the same font is changed when the font isn't supported by an email client:

    Inbox Preview with non-web-safe font on mobile view

 

Color contrast

Mobile devices can be set to "Dark Mode" so screens aren't as bright in low-light environments, but each email operating system handles colors and contrast differently, which can make your email look very different from how you intended. This includes inverted colors, poor contrast that makes elements of your email invisible, and image distortion.

  • Example of an email displayed as intended:

    User-added image

  • Example of the same email displayed with "dark mode" enabled and poor contrast in the logo image:

    User-added image

 

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